Mobvoi TicWatch Pro 2020
Power button no longer does anything.
I restarted the watch once and it worked for a while but now that doesn't help.
Is there a fix or should I contact them for help?

Thank you for your reply!
After running Tic Pulse it said failed.
I cleared cache, restarted watch and it is working again.

Tic Pulse used to work, now it fails.
How do I get it to work again?

If you press and hold "Learn more" button another button will pop up. This one will say "Skip tutorial". Press it and the tutorial will go away.

I unpaired and repaired the watch and it seems OK so far. Will see if it happens again.