The Sync function no longer shows a progress screen, and does not revert back to the watch screen.
I wrote to customer support about the battery draining 5 times faster than before since the update. I did a factory reset, uninstalled everything (or, rather, didn't install anything), turned off bluetooth, and used UltraTrack for a 40 minute walk. Watch lasted just over 48 hours. Very disappointed.
No response yet from CS. It's been over a day. Will see what they say.