Just want to add to this ticket so that the solution is included.After investigating the ticket, I found that an actor within the Enttec User Actor was experiencing a bug related to initial value parsing.This bug is confirmed fixed for the upcoming 3.0.3 release, and the Enttec DMX User Actors I have posted to the Plugins Page are not affected by this issue in the current release.see: https://troikatronix.com/plugin/dx-dmx-universe-enttec-compatible/

I fixed the problem -  I tried Qlab a it "hold me" that there were two files in my library that i should delete to make the DMX USB PRO interface work agin i did and it worked ... It was this two... - D2xxHelper.kext- FTDIKext.kext Thanks for the replys.  

Great, thank you all!It is so helpful. I will research a bit more and then will decide.All my best,Shigezo