Altimeter+thermometer broken in 13.0

Ever since I updated to 13.0 both the altimeter and the thermometer have been broken in my Fenix 5x. In fact in the "last 4h temperature" plot you could even see how after the update it switches from 27ºC to -4ºC.

The altimeter is also completely bollocks, switching randomly between 20000m and -8000m. Calibrating fixes it for like 5 seconds, then goes back to either extreme at a rate of 20m/second.

Starting to get very tired of the regressions. This release fixed Wi-Fi syncing, but did not fix navigation (navigation has been broken for _months_ now) and now it breaks the altimeter.
I just don't know what to do anymore. This being an APAC device... ciq.forums.garmin.com/.../1472750.png