App fails to start on macOS 26.1.0 – shows only “Error macOS 26.1.0” dialog

[bambuca]

When launching the app on macOS 26.1.0, an error dialog shows:

macOS 26.1.0 

The application does not crash, but it does not function properly / the main UI does not behave as expected.

[cricketthomas]

What version of the application are you using? Thanks