randomly, the app does not work after small changes in Reality Composer. Small changes like scaling a object a tiny bit.
to fix the error, i have to change another element in reality composer and hope for the best. if this does not help, i change (transform) something else, or deactive/activate something to get the project working again. I can't see a pattern why the Reality Composer Project sometimes gets in a state where it does not compile anymore.
seems there are more people having this problem https://developer.apple.com/forums/thread/809712
i have these problems after adding a timeline to the project.
hello devs ? any idea ? not using timelines would a downer
Hello, @wirmachenbunt, thank you for your question!
It is difficult to diagnose errors that occur "randomly", but I'll do my best to figure out what might be causing your scene to be missing.
In my experience, errors like these are caused by a serialization issue. Reality Composer Pro serializes your scene data to a USDA file, and if you open your scenes in a text editor you will be able to see all the values for your Timeline animations, components, entities, etc. I suspect that Reality Composer Pro has somehow serialized your Timeline incorrectly, but I'm not sure what order of events could have triggered it.
Is it possible to diff your scene (the USDA file), between a working version and a broken version, and see what values have changed? I think this could give us some insight on the issue.
Could you please file a bug report using Feedback Assistant? And then share the feedback number here and I'll be able to take a look. If you are able to attach a project with steps to reproduce that error that would be immensely helpful. Anything you share with us over Feedback Assistant will be confidential.
Thank you!
thank you for your reply. diffing the scene is a good idea. until now, I had no idea how to even approach the bug hunting, since it seems not connected to any interaction / changes nor code.
it is most likely the serialization of scene data. I'll keep you updated and try to reproduce it.
I can actually provide the project as it is not super complex and nor confidential.
