I've had this watch about 6 months. I'm used to pressing the lower left or middle button to see glances.
After 21.19, nothing happens when I push those buttons in normal watch-face mode.
However, the press-hold functions work, and both buttons work to scroll up and down in menus. Both buttons will turn on the screen from blank state. So the buttons aren't broken electro-mechanically - it's a firmware problem.
I've tried power off and on twice. No change.
Any ideas? Thanks.