Problem solved!
I should have started the programm more often to see if it worked.
The thing was I was so fixated on the driver name "USB - Track" as described in the installation manual that I was never happy with the driver name "USB Serial Port" which is working fine now
Im was an idiot.
Only to let you, my funny opening with a rental gear I haven't packed, that had a collapsed slider on the main had a speedreduction of 55km/h in the first 0,25sec!!! Regular openings have only 20-30km/h reduction in the first 0,25sec