Thanks for the additional info!
If the crash happens daily for you, then it would be awesome if you could also test having the cloud sync disabled for longer periods of time - just that we can be sure that it must be somehow related to it.
If you happen to experience crashes/hangs even though the Cloud Sync is disabled, maybe you can then try to disable the menu bar item or the automatic pause after idle time to see if that is somehow related.
Thanks again! I am determined to find and fix that bug but as I am not able to reproduce this myself, I am dependent on you doing some tests.