[BUG] Jack status: unkown

[zizlog]

Studio-Controls is installed on openSUSE using a real time Kernel with Jack running and started.

When Studio-Controls is opened it shows "Jack status: unknown".
"Stop Jack" does stop it and the status changes to stopping ..., then briefly to undetermined and stopping... again, indefinitely.
Restarting S-C will show status: unknown again.
"Start or Restart Jack" changes the status to stopping..., briefly to undetermined, followed by stopping... again.
Starting and stopping Jack via Jackctl doesn't change the status in S-C.

DSP status and X-runs work fine.

terminal output when "Start or Restart Jack" is activated:

Starting Autojack...
sent it quit
autojack is running
version: 2.3.9 status:Undetermined
version: 2.3.9 status:Stopping...

Desired behavior: showing the Jack status correctly and allow Start/ Restart.

Studio-Controls v2.3.9, Jack v.1.9.12, openSUSE Leap 15.5,
Kernel v5.14.21.x-rt