MacOS client (3.01 and 3.02) Exit/crash

Howdy.

I recently upgraded my two computers to the 3.X train. Unfortunately, the client seems to be exiting/crashing every day (or even when I just go away from the computer for an hour or two). I have to remember to restart the app each time I sit back down. This behavior is new with the upgrade, and is consistent across two of my three machines. The third machine I left at the last of the 2.x train (2.6.5) and is working normally.

No messages in system.log. Unsure if there are any other places to check for logs. The sync.log inside the Application Support folder has nothing obvious in it.

Suggestions on how to troubleshoot?

Thanks.