watch display doesn't turn off when I am not wearing the watch.

watch display doesn't turn off when I am not wearing the watch. On 26.2.1. I think an update may have caused this, it used to work fine days ago.

So I remove the watch from my hand, display turns off, then I put it to charge, display turns on. Then I turn of the charger's power switch, display stays on forever. Even if I remove the watch from the charger the display stays on. I try putting it sideways, display still on, eventually if I move it around a bit the display turns off but not sure what causes this.