What’sApp notifications not working after iOS 18 and watchOS 11

My WhatsApp suddenly stopped sending notifications to my Apple Watch after watchOS 11 and iOS 18 updates on iPhone 14pro max and watch series 9. When I got the iPhone 16 pro max and watch series 10, the notifications came back but then suddenly stopped again. I’ve tried resetting the watch and reinstalling WhatsApp 3x and it came back for some days and then stopped again. On the watch app, in the notifications setting does not show the WhatsApp anymore to turn on and off notifications. Anyone having the same issues??