None of my notifications are opening

I get them with no issue. I can swipe them away, I can snooze them, I can manage them, I can close them with the x. For messaging apps I can reply directly from the notification... but I can't open any app from clicking on the notification. Any ideas if this is a known bug, or if there is a setting I may have flagged? It seems to have occurred recently. About 2 weeks.