Greetings harleymeenen,
In the Watch app on your companion iPhone, do you have Messages set to mirror your iPhone or as Custom? Are you receiving notifications for each message that is coming in when this happens?
If you haven’t already, let’s also be sure to have you restart both your companion iPhone and your Apple Watch. A basic step but it’s going to refresh the connection between the two devices and the software. They don’t need to be restarted in a specific order, but you’ll want to be sure to restart both of them.
Restart your iPhone
Restart your Apple Watch
Is there any type of Focus set up that would restrict the ability of your Apple Watch to receive messages during a certain period? Use Focus on Apple Watch
Thanks.