19.20 update troubles

On saturday my watch was updated to version...

And then the problems started
1) The sensors do not work, the heart rate sensor says that you need to update the software
2) When notified, the watch freezes for 30-60 seconds and vibration works all this time
3) The clock has become very slow, I can hardly turn it off
4) The clock does not sync with Garmin Connect

Master reset didn't help :(

Garmin any ideas how to fix this?