Dexcom with 12.11

After the 12.11 install the Dexcom app no longer reliably loads my glucose levels.

Either it does display, but pauses before the number appears. (Previously the glucose number was instant)

OR

It fails to display and states "No Data"

Garmin App on Garmin watch.... I expect better.

Else please grant my long term wish... and let me opt out of Watch OS updates.

Thanks

Barry