The version number of a the new build must be >= 0.22.0dev.36823

Is the code you posted not working after 10 seconds? Or is that just a minimal example? 1 second is enough here for the sample code. If there is a more complex version, I'd be happy to look at it. I copy & paste the whole code into the Python console and I can confirm that using 3 seconds doesn...

I'm using the Conda builds. I've not seen the crash before today. The 21.2 is the stable Mac conda build.

OK, I think I know how to fix it and will prepare a PR. Please report back once you have the new version to hopefully confirm that it solves the problem.

I had this only on very few occasions, where a restart of FreeCAD fixed it. In case it has something to do with report view, here are my settings: It is 100% reproducable for me. Your report view settings were almost the same as mine. Changing to yours had no effect. If it's reliably reproducible c...

If I start FreeCAD and then click Tools|Customize from the menu, it SEGfaults. Can you somehow get a callstack to see where it crashes? 0.21.2 now also segfaults! How old is your 0.21? Have you observed this crash earlier or did this happen all the sudden? Do you use a self-compiled version or one ...

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Just have a look at: https://github.com/looooo/freecad.gears/tree/4e6223bffa44c2cd66b5047b9b0d8bbe9bbd9a3e License GNU General Public License v3.0 and: https://github.com/shaise/FreeCAD_FastenersWB/tree/def9cfed22398336973ef41e291561e06eb5c155 License GPLv2 which renders irrelevant any further discu...

the property wont appear under "Animation". The property is created though, because when I do:

This is because there is currently no property editor implemented.

https://github.com/FreeCAD/FreeCAD/pull/13332 is now finished. It fixes all issues I have observed.