Crash with physics object

I am suddenly getting the occasional crash. I am unable to consistently trigger it, but it has happened multiple times the last hour of testing. Fusion always point out line 699:

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It does not give me anything else to go on. Is it possible to get some additional logs?

The red object is a standard physics object with bouncing ball movement. I don't know if that is relevant.

Edit: I can make it crash every time on startup if I remove the state requirement like so:
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I managed to isolate the issue to these two events:

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Is this a bug in Fusion?

I am attaching the file as well

That did not resolve it for me. I did clone the object and delete the original as you said, but I also applied the same events to that new object which made it crash again.

But what is a bad object, how do they appear, and how can I avoid them?

I also got it to crash by creating a completely new object. It seems the object must must have a "Disappear" animation for the crash to happen. Try removing the animation and the crash does not happen.

Attaching file with a new object:

Thanks for testing! Where should this be reported?