Automatic dimming worked just fine in 4 rooms here. 4 dimmers all with those Warmglows. Dimlevel is all approximately min 10 and max 80.
So I’m suspecting another issue.
When you cut the power to the Fibaro (zekering in de kast uitzetten) the Fibaro will automatically calibrate when you turn the power back on.
Dear people,
It is working flawlwssly for a few days now. I pulled some wxtra wires. blue and brown. No trick is needed anymore for extra blue wire and there is a native brown wire. Quite a job 
. After that I connected Dimmer 2 with no trick at all. pulse-switches and no bypass. Now it works well, with no issue at all. There must have been some flaw in my wiring. Thanks for all suggestions and help. I learned a lot 
No trick, just plain following the wiring in the manual.
