I added a new Facebook login to 1password for Windows earlier which syncs to my Dropbox.
Opened B52 just now and noticed it still said 163 items and when I searched the logins I could not see this new Facebook login...
Checked sync settings, it has, or it says it has been syncing and I also told it to Sync Now too, still 163 items when it should be 164
Opened AppStore version of 1password and as soon as it had synced I had 164 items and this Facebook login was there.
Opened B52 again, still only 163....
Disabled sync and added Dropbox sync as we had to do to fix the previous upgrade of beta issue and guess what, 164 items and it's there.
So although the Dropbox sync appears to be working after upgrading, there's something not right, I've had to disable sync and setup again for it to sync a new item