Hello RossMcLeod-2305,
Thank you for your question.
Sometimes this happens because of an internal windows bug that pretends you don't need important notifications, but I understand that this must be bothersome for you.
I recommend that you look forward to an update soon which should help fix this.
Also, I recommend that you post your question on the windows 11 forum as well, because sometimes you might already have some open discussion about it and it can help solve the problem faster.
To do this, access the link below and select the option "Ask a question" from the top menu and then describe the entire problem, including images:
If the answer is helpful, please vote positively and accept as an answer.