I just noticed this today. Using DEVONthink 3…7.2 with Apple Mail Plugin 4.0.2 on MacBook Pro 13" (2018) running macOS Big Sur 11.5.2 (20G95). When I import at item from Apple Mail 14.0 into DEVONthink, I no longer get a notification banner in the upper right corner of my screen. Instead, nothing. I can go look at DEVONthink and confirm that the imported item is there in the Global Inbox, but no banner. I like having the nearly instant confirmation that my import succeeded, but for some reason it’s stopped happening.
I don’t see anything relevant in the DEVONthink preferences, and here’s an image of my notifications preferences in System Preferences:
Any ideas, suggestions, questions?