1) Installed Ubuntu (proper, GNOME desktop) on test machine
2) Installed ubuntustudio-controls 1.12.5~20.04.1
3) Ran Ubuntu Studio Controls, application failed to start, same error as in this bug report.
4) Installed ubuntustudio-controls 1.12.6~20.04.1
5) Ran Ubuntu Studio Controls without error.
Package has been tested.
1) Installed Ubuntu (proper, GNOME desktop) on test machine controls 1.12.5~20.04.1 controls 1.12.6~20.04.1
2) Installed ubuntustudio-
3) Ran Ubuntu Studio Controls, application failed to start, same error as in this bug report.
4) Installed ubuntustudio-
5) Ran Ubuntu Studio Controls without error.
Bug appears to be fixed.