Yes, the problem is the position sync at the start of pimatic/device. I assume fully closed at start. Once synced it should be ok.
If your shutter doen’t break i will skip the check, because the first command is always send and the position is in sync afterwards (because you return the real position) -> version 0.2.4
Okay done, works! Thx for your support!
Just a funny fact: GA response for “Move shutter X to 0%” and “Move shutter X to 100%” >> Shutter will be opened.