Since running macOS Big Sur, I quite often get these β€œUnable to Download App” error when trying to update my apps on my M1-based Mac mini. I need to try a few times or even reboot the machine in order to fix this issue. The app is being downloaded, but the installation phase is failing at the very end. Version 11.2 of Big Sur didn’t fix the issue. And it’s not related to an app being open or in use.

Is anyone getting these too? It’s kind of annoying.