Ortur Lasermaster 2 brennt nur durchgezogene Linien

Ahh… so the laser is not turning off during moves. From previous forum topics this is likely a malfunctioning board.

You may want to recheck all your connections to make sure they are all fitting properly but otherwise you probably need to get in touch with Ortur support.

See here for a similar issue:
Ortur Laser Master 2 - 20w laser not turning off between cuts - Hardware / Ortur Lasers - LightBurn Software Forum

@OrturTech may be able to provide additional guidance.