Square icon on Mail notifications instead of circular?
I'm pretty sure this has happened to me several times over the years, but it hasn't happened for a while so I can't remember the fix.
But for some reason, the notifications for Mail on my Apple Watch are square instead of circular. As you know, circular notifications are interactive and can be replied to, actioned, etc. whereas square ones are literally notifications and you can't do anything with them.
What if you go into the Watch app on your phone and change the notification settings for the mail app from “mirror my iPhone” to “Custom”? Does that make a difference for you? Could that have been reset to default when upgrading to watchOS 10?
I did try that amount several other things but it didn’t make a difference.
I eventually fixed this by simply opening the Mail app on the Watch. Something as simple as that. Wonder whether by doing so I just triggered something. Who knows.