Updating IdleChampions with this breaks the game

[Digi]

legendary.exe install "idlechampions" --update-only

It downloaded stuff and then a bunch of errors that it can't delete files, no idea what that was about.
Then when I launched it with legendary it started but it had black screen.

I suspect this game might require some special post-update things to run or delete (the game uses a sort of downloadable definition system so they can update stats without pushing an actual game update).

I then launched EGS and it proceeded to download updates itself.
Then launched it from legendary again and it was fine.

Platform

Operating system: Win10 22H2
Legendary version: v0.20.33

Expected Behavior

It should update the game so that it works just like the EGS launcher would.

Current Behavior

It updates in a way that makes the game launch in a weird state, stays black screen.
I've no idea where this program's logs are.

Steps to Reproduce

1. Get an older version of IdleChampions game (it's a free game, and you probably know a way to change the manifest to think it's got an older version).
2. Update using legendary.exe install "idlechampions" --update-only
3. Launch game from legendary too (I used legendary.exe launch 40cb42e38c0b4a14a1bb133eb3291572 --skip-version-check)

[ajvaughan]

I use legendary to update and launch Idle Champions regularly and have never had an issue, so I'm not sure what caused Digi's problems.

[Digi]

I tried it again just now and still blank screen when starting game after update.

Here's the command line I used and what happened:
console.txt

I tried the non-update-only command after I launched it and it failed (using a .bat that I've used for a long time and is unlikely to be an issue but I can post that too if needed)

Then the game itself (with console open, hold click and rotate mouse in a circle):

Now I've renamed that folder and told legendary to download it fresh: legendary.exe install idle --base-path C:\Games

And it works fine. So only updating breaks for some reason 🤷

EDIT: did a compare of the folders, ignoring the IdleDragons_Data\StreamingAssets\* as those are usually downloaded in realtime, I see that the IdleDragons_Data\resources.assets are different and indeed replacing it in the broken one fixed it.

I can send this broken file if you want to investigate, it's 70MB.

EDIT#2: Oh! I do have the config as read-only, maybe that breaks something in the update? IdleDragons_Data\StreamingAssets\localSettings.json

[Digi]

Another update came and I first unset readonly from that file and updated, and it runs fine now 🎉
Pretty weird that a readonly file can break other files (resources.assets) from being updated, is this something you can fix? or at least scan for readonly files and alert user 😇

[Rodney]

Closing as per above, this is not an issue with Legendary.

[Digi]

It doesn't happen with EGS client though.
Even if the issue is in the API would still be nice for users to be aware of it by checking readonly files and telling them to un-readonly to avoid problems.