Alerts are not clearing on Catalina
I have a MacBookPro laptop, an iPad, an iPhone, and an iWatch. It appears that ALERTS are not properly synchronizing on all devices. I started noticing this problem only after about Catalina version 10.15.6. All devices are up-to-date (latest MBP update is 10.15.7, eg.).
I am getting Alerts on my MBP that cannot be cleared by viewing the app. This is not just ONE app. I have seen this on iMessage, Calendar, and also the iRobot app. For the iMessage alerts, I finally figured out that if I view the message on my iPhone, then it also clears it elsewhere. I've not been as successful with the Calendar, which is displaying the red circle with 2 alerts, presumably. I cannot figure out WHICH alerts or where to view it, so that it will clear properly. I already tried looking on my iPhone and my iPad, it did not clear the 2 alerts on my MBP.
I looked at Alerts in Calendar Preferences to see if it's set correctly. I see nothing wrong there.
Do other people notice this new bug? Is there a way to clear the Alert icon on various apps that I'm missing?
iMac, macOS 10.12