2 teacher`s pc bug

[Lirik]

Hello everyone. I have next bug.
I have master's config on 2 pc. And student's config on 13 pc.
The trouble is you can use some features (an example), screen lock, only if Veyon Master doesnt run at this moment in another pc.

1)I locking student`s pc
2)It immideately unlock. I guess launched Veyon on another system re-write machine state.

If close Veyon on 2nd pc, everything is ok.