Björn Ritzl

By the way, does it also happen on iOS 14 devices, or only 13?

@dri-richard is this still an issue for you?

* Which extensions are used? * Can this be reproduced with a project without extensions? * Can you share a sample project?

``` 0 dmengine 0x000000010306d398 _ZN7dmCrash7OnCrashEi + 104 1 libsystem_platform.dylib 0x0000000189cfaa24 _sigtramp + 56 2 libsystem_pthread.dylib 0x0000000189ccbc28 pthread_kill + 288 3 libsystem_c.dylib 0x0000000189bd9ae8 abort + 180 4 libsystem_c.dylib 0x0000000189bd8e44 err +...

@cnaize you can drag and drop the crash file here to get the stack trace produced above plus extra info. https://britzl.github.io/crashtool/

@cnaize are you able to reproduce this issue? Looks like it is a property animation on a game object which crashes for some reason.

> thanks for the tool, but I don't know how to use the information from it. Ah, no, it is more for our sake when trying to figure out what...

@cnaize is this running in a coroutine or something? Otherwise the `while true do end` will run forever and never yield the main thread.

Ok, yeah, sure, this will cause a crash: ``` function init(self) while true do go.animate("#sprite", "tint.w", go.PLAYBACK_ONCE_FORWARD, 1, go.EASING_INOUTEXPO, 0.7, 0, function() go.animate("#sprite", "tint.w", go.PLAYBACK_ONCE_FORWARD, 0, go.EASING_INOUTEXPO, 0.7) end) end...

Ok, got it. We might have an idea what's going on. It is possibly related to another callback/function ref issue we have in spine. https://github.com/defold/extension-spine/issues/147