Are you using the latest version of Big Sur? I remember that there was a bug with code signing that didn’t work on older OS X versions when signed there. Updating macOS have fixed the problem.
Here is the link:
Edit: looks like a different problem
Are you using the latest version of Big Sur? I remember that there was a bug with code signing that didn’t work on older OS X versions when signed there. Updating macOS have fixed the problem.
Here is the link:
Edit: looks like a different problem