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Monique monosynth

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Hunting memory errors

baconpaul opened this issue · comments

commented

So this evening before bed I turned on the address sanitizers in clang.
To do this add to target_compile_options after the warning disablement -fsanitize=address -fsanitize=undefined -fno-omit-frame-pointer and add a

    target_link_options(${PROJECT_NAME} PUBLIC
            -fsanitize=address -fsanitize=undefined
            )

then i build and run the standalone and in a single instance if I just click back and forth on the shift and ctrl button at the top 10 times or so I get a crash and the following sanitizer output. Hard to trap this outside the sanitizer but putting it here in case it rings any bells.

2021-12-15 21:57:31.173887-0500 MoniqueMonosynth[91633:10470605] =================================================================
2021-12-15 21:57:31.173915-0500 MoniqueMonosynth[91633:10470605] ==91633==ERROR: AddressSanitizer: heap-use-after-free on address 0x00011666ab20 at pc 0x00010255f2d0 bp 0x00016d909470 sp 0x00016d909468
2021-12-15 21:57:31.173920-0500 MoniqueMonosynth[91633:10470605] READ of size 1 at 0x00011666ab20 thread T0
2021-12-15 21:57:31.173926-0500 MoniqueMonosynth[91633:10470605] pc_0x10255f2cc###func_juce::CharPointer_UTF8::isEmpty() const###file_juce_CharPointer_UTF8.h###line_73###obj_(MoniqueMonosynth:arm64+0x10006f2cc)
2021-12-15 21:57:31.173931-0500 MoniqueMonosynth[91633:10470605] pc_0x1032a92f0###func_juce::CharPointer_UTF8 juce::StringHolder::createFromCharPointer<juce::CharPointer_UTF8>(juce::CharPointer_UTF8)###file_juce_String.cpp###line_80###obj_(MoniqueMonosynth:arm64+0x100db92f0)
2021-12-15 21:57:31.173935-0500 MoniqueMonosynth[91633:10470605] pc_0x1032a904c###func_juce::String::String(juce::CharPointer_UTF8)###file_juce_String.cpp###line_349###obj_(MoniqueMonosynth:arm64+0x100db904c)
2021-12-15 21:57:31.174017-0500 MoniqueMonosynth[91633:10470605] pc_0x10320b740###func_juce::String::String(juce::CharPointer_UTF8)###file_juce_String.cpp###line_349###obj_(MoniqueMonosynth:arm64+0x100d1b740)
2021-12-15 21:57:31.174030-0500 MoniqueMonosynth[91633:10470605] pc_0x102c883a8###func_Monique_Ui_DualSlider::refresh()###file_monique_ui_ModulationSlider.cpp###line_651###obj_(MoniqueMonosynth:arm64+0x1007983a8)
2021-12-15 21:57:31.174035-0500 MoniqueMonosynth[91633:10470605] pc_0x102d6b844###func_Monique_Ui_Refresher::timerCallback()###file_monique_ui_Refresher.cpp###line_13###obj_(MoniqueMonosynth:arm64+0x10087b844)
2021-12-15 21:57:31.174039-0500 MoniqueMonosynth[91633:10470605] pc_0x104f7e4dc###func_juce::Timer::TimerThread::callTimers()###file_juce_Timer.cpp###line_114###obj_(MoniqueMonosynth:arm64+0x102a8e4dc)
2021-12-15 21:57:31.174044-0500 MoniqueMonosynth[91633:10470605] pc_0x104f7dcac###func_juce::Timer::TimerThread::CallTimersMessage::messageCallback()###file_juce_Timer.cpp###line_180###obj_(MoniqueMonosynth:arm64+0x102a8dcac)
2021-12-15 21:57:31.174095-0500 MoniqueMonosynth[91633:10470605] pc_0x104f9a89c###func_juce::MessageQueue::deliverNextMessage()###file_juce_osx_MessageQueue.h###line_81###obj_(MoniqueMonosynth:arm64+0x102aaa89c)
2021-12-15 21:57:31.174099-0500 MoniqueMonosynth[91633:10470605] pc_0x104f9a58c###func_juce::MessageQueue::runLoopCallback()###file_juce_osx_MessageQueue.h###line_92###obj_(MoniqueMonosynth:arm64+0x102aaa58c)
2021-12-15 21:57:31.174114-0500 MoniqueMonosynth[91633:10470605] pc_0x104f998e4###func_juce::MessageQueue::runLoopSourceCallback(void*)###file_juce_osx_MessageQueue.h###line_100###obj_(MoniqueMonosynth:arm64+0x102aa98e4)
2021-12-15 21:57:31.174118-0500 MoniqueMonosynth[91633:10470605] pc_0x1a5590bb8###func___CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x84bb8)
2021-12-15 21:57:31.174122-0500 MoniqueMonosynth[91633:10470605] pc_0x1a5590b04###func___CFRunLoopDoSource0###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x84b04)
2021-12-15 21:57:31.174126-0500 MoniqueMonosynth[91633:10470605] pc_0x1a55907f0###func___CFRunLoopDoSources0###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x847f0)
2021-12-15 21:57:31.174129-0500 MoniqueMonosynth[91633:10470605] pc_0x1a558f164###func___CFRunLoopRun###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x83164)
2021-12-15 21:57:31.174133-0500 MoniqueMonosynth[91633:10470605] pc_0x1a558e690###func_CFRunLoopRunSpecific###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x82690)
2021-12-15 21:57:31.174136-0500 MoniqueMonosynth[91633:10470605] pc_0x1ae10498c###func_RunCurrentEventLoopInMode###file_<null>###line_155611696###obj_(HIToolbox:arm64e+0x3098c)
2021-12-15 21:57:31.174140-0500 MoniqueMonosynth[91633:10470605] pc_0x1ae104700###func_ReceiveNextEventCommon###file_<null>###line_155611696###obj_(HIToolbox:arm64e+0x30700)
2021-12-15 21:57:31.174143-0500 MoniqueMonosynth[91633:10470605] pc_0x1ae1044c0###func__BlockUntilNextEventMatchingListInModeWithFilter###file_<null>###line_155611696###obj_(HIToolbox:arm64e+0x304c0)
2021-12-15 21:57:31.174147-0500 MoniqueMonosynth[91633:10470605] pc_0x1a80e3ae8###func__DPSNextEvent###file_<null>###line_155611696###obj_(AppKit:arm64e+0x41ae8)
2021-12-15 21:57:31.174151-0500 MoniqueMonosynth[91633:10470605] pc_0x1a80e238c###func_-[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]###file_<null>###line_155611696###obj_(AppKit:arm64e+0x4038c)
2021-12-15 21:57:31.174154-0500 MoniqueMonosynth[91633:10470605] pc_0x1a80d43ac###func_-[NSApplication run]###file_<null>###line_155611696###obj_(AppKit:arm64e+0x323ac)
2021-12-15 21:57:31.174158-0500 MoniqueMonosynth[91633:10470605] pc_0x104f404dc###func_juce::MessageManager::runDispatchLoop()###file_juce_mac_MessageManager.mm###line_359###obj_(MoniqueMonosynth:arm64+0x102a504dc)
2021-12-15 21:57:31.174162-0500 MoniqueMonosynth[91633:10470605] pc_0x104f40124###func_juce::JUCEApplicationBase::main()###file_juce_ApplicationBase.cpp###line_262###obj_(MoniqueMonosynth:arm64+0x102a50124)
2021-12-15 21:57:31.174166-0500 MoniqueMonosynth[91633:10470605] pc_0x104f3fc64###func_juce::JUCEApplicationBase::main(int, char const**)###file_juce_ApplicationBase.cpp###line_240###obj_(MoniqueMonosynth:arm64+0x102a4fc64)
2021-12-15 21:57:31.174169-0500 MoniqueMonosynth[91633:10470605] pc_0x1024f7a04###func_main###file_juce_audio_plugin_client_Standalone.cpp###line_47###obj_(MoniqueMonosynth:arm64+0x100007a04)
2021-12-15 21:57:31.174173-0500 MoniqueMonosynth[91633:10470605] pc_0x10906d0f0###func_start###file_<null>###line_155611696###obj_(dyld:arm64e+0x50f0)
2021-12-15 21:57:31.174177-0500 MoniqueMonosynth[91633:10470605] 
2021-12-15 21:57:31.174180-0500 MoniqueMonosynth[91633:10470605] 0x00011666ab20 is located 16 bytes inside of 27-byte region [0x00011666ab10,0x00011666ab2b)
2021-12-15 21:57:31.174183-0500 MoniqueMonosynth[91633:10470605] freed by thread T0 here:
2021-12-15 21:57:31.174187-0500 MoniqueMonosynth[91633:10470605] pc_0x10945ebc8###func_wrap__ZdaPv###file_<null>###line_155611696###obj_(libclang_rt.asan_osx_dynamic.dylib:arm64e+0x4abc8)
2021-12-15 21:57:31.174190-0500 MoniqueMonosynth[91633:10470605] pc_0x103426e18###func_juce::StringHolder::release(juce::StringHolder*)###file_juce_String.cpp###line_164###obj_(MoniqueMonosynth:arm64+0x100f36e18)
2021-12-15 21:57:31.174194-0500 MoniqueMonosynth[91633:10470605] pc_0x1032a5718###func_juce::StringHolder::release(juce::CharPointer_UTF8)###file_juce_String.cpp###line_169###obj_(MoniqueMonosynth:arm64+0x100db5718)
2021-12-15 21:57:31.174197-0500 MoniqueMonosynth[91633:10470605] pc_0x1032a550c###func_juce::String::~String()###file_juce_String.cpp###line_247###obj_(MoniqueMonosynth:arm64+0x100db550c)
2021-12-15 21:57:31.174201-0500 MoniqueMonosynth[91633:10470605] pc_0x1031ebd98###func_juce::String::~String()###file_juce_String.cpp###line_246###obj_(MoniqueMonosynth:arm64+0x100cfbd98)
2021-12-15 21:57:31.174207-0500 MoniqueMonosynth[91633:10470605] pc_0x102c1721c###func_MorphSLConfig::get_center_suffix() const###file_monique_ui_SliderConfig.h###line_6231###obj_(MoniqueMonosynth:arm64+0x10072721c)
2021-12-15 21:57:31.174211-0500 MoniqueMonosynth[91633:10470605] pc_0x102c88344###func_Monique_Ui_DualSlider::refresh()###file_monique_ui_ModulationSlider.cpp###line_651###obj_(MoniqueMonosynth:arm64+0x100798344)
2021-12-15 21:57:31.174215-0500 MoniqueMonosynth[91633:10470605] pc_0x102d6b844###func_Monique_Ui_Refresher::timerCallback()###file_monique_ui_Refresher.cpp###line_13###obj_(MoniqueMonosynth:arm64+0x10087b844)
2021-12-15 21:57:31.174218-0500 MoniqueMonosynth[91633:10470605] pc_0x104f7e4dc###func_juce::Timer::TimerThread::callTimers()###file_juce_Timer.cpp###line_114###obj_(MoniqueMonosynth:arm64+0x102a8e4dc)
2021-12-15 21:57:31.174222-0500 MoniqueMonosynth[91633:10470605] pc_0x104f7dcac###func_juce::Timer::TimerThread::CallTimersMessage::messageCallback()###file_juce_Timer.cpp###line_180###obj_(MoniqueMonosynth:arm64+0x102a8dcac)
2021-12-15 21:57:31.174225-0500 MoniqueMonosynth[91633:10470605] pc_0x104f9a89c###func_juce::MessageQueue::deliverNextMessage()###file_juce_osx_MessageQueue.h###line_81###obj_(MoniqueMonosynth:arm64+0x102aaa89c)
2021-12-15 21:57:31.174229-0500 MoniqueMonosynth[91633:10470605] pc_0x104f9a58c###func_juce::MessageQueue::runLoopCallback()###file_juce_osx_MessageQueue.h###line_92###obj_(MoniqueMonosynth:arm64+0x102aaa58c)
2021-12-15 21:57:31.174232-0500 MoniqueMonosynth[91633:10470605] pc_0x104f998e4###func_juce::MessageQueue::runLoopSourceCallback(void*)###file_juce_osx_MessageQueue.h###line_100###obj_(MoniqueMonosynth:arm64+0x102aa98e4)
2021-12-15 21:57:31.174236-0500 MoniqueMonosynth[91633:10470605] pc_0x1a5590bb8###func___CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x84bb8)
2021-12-15 21:57:31.174240-0500 MoniqueMonosynth[91633:10470605] pc_0x1a5590b04###func___CFRunLoopDoSource0###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x84b04)
2021-12-15 21:57:31.174253-0500 MoniqueMonosynth[91633:10470605] pc_0x1a55907f0###func___CFRunLoopDoSources0###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x847f0)
2021-12-15 21:57:31.174257-0500 MoniqueMonosynth[91633:10470605] pc_0x1a558f164###func___CFRunLoopRun###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x83164)
2021-12-15 21:57:31.174260-0500 MoniqueMonosynth[91633:10470605] pc_0x1a558e690###func_CFRunLoopRunSpecific###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x82690)
2021-12-15 21:57:31.174263-0500 MoniqueMonosynth[91633:10470605] pc_0x1ae10498c###func_RunCurrentEventLoopInMode###file_<null>###line_155611696###obj_(HIToolbox:arm64e+0x3098c)
2021-12-15 21:57:31.174267-0500 MoniqueMonosynth[91633:10470605] pc_0x1ae104700###func_ReceiveNextEventCommon###file_<null>###line_155611696###obj_(HIToolbox:arm64e+0x30700)
2021-12-15 21:57:31.174271-0500 MoniqueMonosynth[91633:10470605] pc_0x1ae1044c0###func__BlockUntilNextEventMatchingListInModeWithFilter###file_<null>###line_155611696###obj_(HIToolbox:arm64e+0x304c0)
2021-12-15 21:57:31.174274-0500 MoniqueMonosynth[91633:10470605] pc_0x1a80e3ae8###func__DPSNextEvent###file_<null>###line_155611696###obj_(AppKit:arm64e+0x41ae8)
2021-12-15 21:57:31.174278-0500 MoniqueMonosynth[91633:10470605] pc_0x1a80e238c###func_-[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]###file_<null>###line_155611696###obj_(AppKit:arm64e+0x4038c)
2021-12-15 21:57:31.174282-0500 MoniqueMonosynth[91633:10470605] pc_0x1a80d43ac###func_-[NSApplication run]###file_<null>###line_155611696###obj_(AppKit:arm64e+0x323ac)
2021-12-15 21:57:31.174285-0500 MoniqueMonosynth[91633:10470605] pc_0x104f404dc###func_juce::MessageManager::runDispatchLoop()###file_juce_mac_MessageManager.mm###line_359###obj_(MoniqueMonosynth:arm64+0x102a504dc)
2021-12-15 21:57:31.174289-0500 MoniqueMonosynth[91633:10470605] pc_0x104f40124###func_juce::JUCEApplicationBase::main()###file_juce_ApplicationBase.cpp###line_262###obj_(MoniqueMonosynth:arm64+0x102a50124)
2021-12-15 21:57:31.174292-0500 MoniqueMonosynth[91633:10470605] pc_0x104f3fc64###func_juce::JUCEApplicationBase::main(int, char const**)###file_juce_ApplicationBase.cpp###line_240###obj_(MoniqueMonosynth:arm64+0x102a4fc64)
2021-12-15 21:57:31.174296-0500 MoniqueMonosynth[91633:10470605] pc_0x1024f7a04###func_main###file_juce_audio_plugin_client_Standalone.cpp###line_47###obj_(MoniqueMonosynth:arm64+0x100007a04)
2021-12-15 21:57:31.174306-0500 MoniqueMonosynth[91633:10470605] pc_0x10906d0f0###func_start###file_<null>###line_155611696###obj_(dyld:arm64e+0x50f0)
2021-12-15 21:57:31.174309-0500 MoniqueMonosynth[91633:10470605] 
2021-12-15 21:57:31.174312-0500 MoniqueMonosynth[91633:10470605] previously allocated by thread T0 here:
2021-12-15 21:57:31.174316-0500 MoniqueMonosynth[91633:10470605] pc_0x10945e7c8###func_wrap__Znam###file_<null>###line_155611696###obj_(libclang_rt.asan_osx_dynamic.dylib:arm64e+0x4a7c8)
2021-12-15 21:57:31.174319-0500 MoniqueMonosynth[91633:10470605] pc_0x1032a69d4###func_juce::StringHolder::createUninitialisedBytes(unsigned long)###file_juce_String.cpp###line_71###obj_(MoniqueMonosynth:arm64+0x100db69d4)
2021-12-15 21:57:31.174323-0500 MoniqueMonosynth[91633:10470605] pc_0x1032a7b54###func_juce::CharPointer_UTF8 juce::StringHolder::createFromCharPointer<juce::CharPointer_ASCII>(juce::CharPointer_ASCII)###file_juce_String.cpp###line_84###obj_(MoniqueMonosynth:arm64+0x100db7b54)
2021-12-15 21:57:31.174810-0500 MoniqueMonosynth[91633:10470605] pc_0x1032a7824###func_juce::String::String(char const*)###file_juce_String.cpp###line_303###obj_(MoniqueMonosynth:arm64+0x100db7824)
2021-12-15 21:57:31.174815-0500 MoniqueMonosynth[91633:10470605] pc_0x1031fd1a0###func_juce::String::String(char const*)###file_juce_String.cpp###line_304###obj_(MoniqueMonosynth:arm64+0x100d0d1a0)
2021-12-15 21:57:31.174818-0500 MoniqueMonosynth[91633:10470605] pc_0x102c17208###func_MorphSLConfig::get_center_suffix() const###file_monique_ui_SliderConfig.h###line_6231###obj_(MoniqueMonosynth:arm64+0x100727208)
2021-12-15 21:57:31.174822-0500 MoniqueMonosynth[91633:10470605] pc_0x102c88344###func_Monique_Ui_DualSlider::refresh()###file_monique_ui_ModulationSlider.cpp###line_651###obj_(MoniqueMonosynth:arm64+0x100798344)
2021-12-15 21:57:31.174825-0500 MoniqueMonosynth[91633:10470605] pc_0x102d6b844###func_Monique_Ui_Refresher::timerCallback()###file_monique_ui_Refresher.cpp###line_13###obj_(MoniqueMonosynth:arm64+0x10087b844)
2021-12-15 21:57:31.174843-0500 MoniqueMonosynth[91633:10470605] pc_0x104f7e4dc###func_juce::Timer::TimerThread::callTimers()###file_juce_Timer.cpp###line_114###obj_(MoniqueMonosynth:arm64+0x102a8e4dc)
2021-12-15 21:57:31.174846-0500 MoniqueMonosynth[91633:10470605] pc_0x104f7dcac###func_juce::Timer::TimerThread::CallTimersMessage::messageCallback()###file_juce_Timer.cpp###line_180###obj_(MoniqueMonosynth:arm64+0x102a8dcac)
2021-12-15 21:57:31.174850-0500 MoniqueMonosynth[91633:10470605] pc_0x104f9a89c###func_juce::MessageQueue::deliverNextMessage()###file_juce_osx_MessageQueue.h###line_81###obj_(MoniqueMonosynth:arm64+0x102aaa89c)
2021-12-15 21:57:31.174854-0500 MoniqueMonosynth[91633:10470605] pc_0x104f9a58c###func_juce::MessageQueue::runLoopCallback()###file_juce_osx_MessageQueue.h###line_92###obj_(MoniqueMonosynth:arm64+0x102aaa58c)
2021-12-15 21:57:31.174869-0500 MoniqueMonosynth[91633:10470605] pc_0x104f998e4###func_juce::MessageQueue::runLoopSourceCallback(void*)###file_juce_osx_MessageQueue.h###line_100###obj_(MoniqueMonosynth:arm64+0x102aa98e4)
2021-12-15 21:57:31.174877-0500 MoniqueMonosynth[91633:10470605] pc_0x1a5590bb8###func___CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x84bb8)
2021-12-15 21:57:31.174881-0500 MoniqueMonosynth[91633:10470605] pc_0x1a5590b04###func___CFRunLoopDoSource0###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x84b04)
2021-12-15 21:57:31.174885-0500 MoniqueMonosynth[91633:10470605] pc_0x1a55907f0###func___CFRunLoopDoSources0###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x847f0)
2021-12-15 21:57:31.174889-0500 MoniqueMonosynth[91633:10470605] pc_0x1a558f164###func___CFRunLoopRun###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x83164)
2021-12-15 21:57:31.174894-0500 MoniqueMonosynth[91633:10470605] pc_0x1a558e690###func_CFRunLoopRunSpecific###file_<null>###line_155611696###obj_(CoreFoundation:arm64e+0x82690)
2021-12-15 21:57:31.174898-0500 MoniqueMonosynth[91633:10470605] pc_0x1ae10498c###func_RunCurrentEventLoopInMode###file_<null>###line_155611696###obj_(HIToolbox:arm64e+0x3098c)
2021-12-15 21:57:31.174902-0500 MoniqueMonosynth[91633:10470605] pc_0x1ae104700###func_ReceiveNextEventCommon###file_<null>###line_155611696###obj_(HIToolbox:arm64e+0x30700)
2021-12-15 21:57:31.174906-0500 MoniqueMonosynth[91633:10470605] pc_0x1ae1044c0###func__BlockUntilNextEventMatchingListInModeWithFilter###file_<null>###line_155611696###obj_(HIToolbox:arm64e+0x304c0)
2021-12-15 21:57:31.174923-0500 MoniqueMonosynth[91633:10470605] pc_0x1a80e3ae8###func__DPSNextEvent###file_<null>###line_155611696###obj_(AppKit:arm64e+0x41ae8)
2021-12-15 21:57:31.174930-0500 MoniqueMonosynth[91633:10470605] pc_0x1a80e238c###func_-[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]###file_<null>###line_155611696###obj_(AppKit:arm64e+0x4038c)
2021-12-15 21:57:31.174934-0500 MoniqueMonosynth[91633:10470605] pc_0x1a80d43ac###func_-[NSApplication run]###file_<null>###line_155611696###obj_(AppKit:arm64e+0x323ac)
2021-12-15 21:57:31.174937-0500 MoniqueMonosynth[91633:10470605] pc_0x104f404dc###func_juce::MessageManager::runDispatchLoop()###file_juce_mac_MessageManager.mm###line_359###obj_(MoniqueMonosynth:arm64+0x102a504dc)
2021-12-15 21:57:31.174941-0500 MoniqueMonosynth[91633:10470605] pc_0x104f40124###func_juce::JUCEApplicationBase::main()###file_juce_ApplicationBase.cpp###line_262###obj_(MoniqueMonosynth:arm64+0x102a50124)
2021-12-15 21:57:31.174945-0500 MoniqueMonosynth[91633:10470605] pc_0x104f3fc64###func_juce::JUCEApplicationBase::main(int, char const**)###file_juce_ApplicationBase.cpp###line_240###obj_(MoniqueMonosynth:arm64+0x102a4fc64)
2021-12-15 21:57:31.174950-0500 MoniqueMonosynth[91633:10470605] pc_0x1024f7a04###func_main###file_juce_audio_plugin_client_Standalone.cpp###line_47###obj_(MoniqueMonosynth:arm64+0x100007a04)
2021-12-15 21:57:31.174953-0500 MoniqueMonosynth[91633:10470605] pc_0x10906d0f0###func_start###file_<null>###line_155611696###obj_(dyld:arm64e+0x50f0)
2021-12-15 21:57:31.174957-0500 MoniqueMonosynth[91633:10470605] 
2021-12-15 21:57:31.174960-0500 MoniqueMonosynth[91633:10470605] SUMMARY: AddressSanitizer: heap-use-after-free juce_CharPointer_UTF8.h:73 in juce::CharPointer_UTF8::isEmpty() const
commented

Oh huh so the line that allocates the freed memory is this

    StringRef get_center_suffix() const noexcept override
    {
        const float state = morhp_state->get_value();
        if( state <= 0.5 )
        {
            return String("L");
        }
        else
        {
            return String("R");
        }
    }

but that returns a stack object into a ref which then will get destructed incorrectly. (Why that api is string_ref is actually odd). If I change that to return "L" then the crash goes away. Let me send up a PR that does that for your consideration in your morning.

commented

Oh huh line 3443 has the same problem and is harder to fix. I'll put a hack into my PR but probably we will want a different approach