Can't open the app after updating

[infeo]

You can send us the logfile after a failed 1.6.1 start, so we can look into the problem.

Additionally, the following thread where one runs a quite restricted Windows might be insightful:

Win10/64 21H1 Enterprise: v1.6.0-RC3 fails to install

Hello! Even from a command line under the administrator’s account the msiexec /a cryptomator-1.6.0.-rc3.msi does not install the program. A frame with the unpacking progress bar appears for a moment and then - closes without any comments. Why is that?