I installed the 3.0.2 and it goes to updating the database, please wait. It will take several hours please be patient. then when the OK pops and you click it the app closes.
Windows10 64 bit if that matters.
-Dave
I had the same issue, but it eventually synced after multiple restarts. Also Win10 64.
Client restarts or OS restarts or both? I am working on 5 or 6 times now of the client restart.