Latest evening I did the 15.4 macos upgrade, and now detected this Bug
The Shortcuts (form Shortcuts native App) are not available anymore. When trying to activate my current shortcuts it shows the message " Error3 while getting Shortcut".
Also, it seems that BTT cannot retrieve the list of shortcuts to be selected with the Action "Run Shortcut from Shortcuts App".
is BTT maybe missing the permission to automate shortcuts events in System Settings => Privacy & Security => Automation ? (it is still working fine here)
The setting was enabled. I deselected it and enabled it again, still without success. I restarted the Mac again, and it started working... Well, that's it! Thanks!