I just got a patch this morning, not sure how new it was, since I stopped using 2012 a while back, as it was USELESS to me.
I thought I'd check and see if there were updates and maybe they had finally fixed their bug-ridden POS.
Installed the update, but same crashes on synch... BUT, now I only have to restart the application 1 time to get it to go ahead and synch, so far anyway...
So, open app, synch, wait for crash, open again, synch and move on to the next tree needing synched, rinse and repeat...
Luckily I only have 8 trees to synch up.
Version: 21.0.0.506