timing glitch between first 2 arpeggiated notes after clock start on external synch

[Jason Hotchkiss]

[Darren Blondin] I noticed a timing bug and verified it on the output. Arpie skips a pulse when it first starts, so after the first note plays it's always a pulse ahead of anything it's sync'ing to. Like this (below). Can you repro this?

NOTE
clock
clock
clock
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clock
NOTE
clock
clock
clock
clock
clock
clock
NOTE
clock
clock
clock
clock
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clock