I’ve noticed that position of an absolutely elements within a frame get messed up after you delete the frame and undo. They are no longer in the original coordinate after undo.
It doesn’t always happen, but it seems to happen when you delete a large number of frames (via cmd+a, delete, and cmd+z).
Attached is the impacted screen. instead of the sticky / floating nav bar remaining bottom aligned to its autolayout container, it gets pushed even further down and gets clipped.
Sometimes it gets pushed ‘up’ as well.
This issue has existed for a few years. As long as I remember.