Watch screen will not wake up with a tap or double tap on screen. Have to use crown button. Have reset phone and unpaired and paired again. Theater mode and sleep mode are off. Software is up to date.
Apple Watch Series 9, watchOS 11
Go to the Settings app 
on your Apple Watch, go to Display & Brightness, then make sure you have turned on Wake on Wrist Raise and Wake On Crown Rotation.
From:
Turn on and wake Apple Watch - Apple Support
If your Apple Watch doesn’t wake when you raise your wrist, make sure you selected the proper wrist and watch orientation. If your Apple Watch doesn’t wake when you tap the display or press or turn the Digital Crown, it may need charging.
Both of those are on and the watch is fully charged
Apple Watch not responding to touch to wake screen
