I'm using the Corona runtime and it's giving me skeleton errors when changing animations. Here's a video of it happening. I haven't changed any code from the repo:

https://drive.google.com/file/d/1UeyuecKIhN3-LzN5BTSdw_ihJI178W1F/view?usp=sharing

ERROR: Runtime error
spine-lua/AnimationState.lua:509: attempt to index local 'skeleton' (a number value)
stack traceback:
spine-lua/AnimationState.lua:509: in function 'applyAttachmentTimeline'
spine-lua/AnimationState.lua:384: in function 'apply'
main.lua:176: in function 'func'
/Users/runner/work/corona/corona/platform/resources/init.lua:202: in function </Users/runner/work/corona/corona/platform/resources/init.lua:189>

Thanks! Solved.