Has anybody else had (and hopefully found a solution) to the issue where a minority (maybe 10%) of incoming Messages do not trigger a notification on the watch nor the iPhone? Here is a length Apple forums thread on it, with no solution. It is a bit difficult to google for this, because I keep getting discussions about not getting any notifications at all, which is a totally different thing.
I first started seeing this last year, with my iPhone 11 Pro Max and Apple Watch Series 5. I spent a lot of time on the phone with Apple support last fall on it, and they had no solution. Then I bought an iPhone 13 Pro Max, and the problem went away. However now it is has started recurring again (the last month or two) on the new phone. I am guessing it started with some software update, either to the phone or watch, but I am not sure. I keep updating to the latest, but it is not going away. I guess there could be something wrong with the watch, but given that it went several months with the new phone without the issue, I tend to doubt it is hardware related.
I first started seeing this last year, with my iPhone 11 Pro Max and Apple Watch Series 5. I spent a lot of time on the phone with Apple support last fall on it, and they had no solution. Then I bought an iPhone 13 Pro Max, and the problem went away. However now it is has started recurring again (the last month or two) on the new phone. I am guessing it started with some software update, either to the phone or watch, but I am not sure. I keep updating to the latest, but it is not going away. I guess there could be something wrong with the watch, but given that it went several months with the new phone without the issue, I tend to doubt it is hardware related.