@ScottMan thank you for your quick reply. I got it working. Everything works as should via APP and via switch. I simply bypassed the 4 way switch by wirenut traveler 1 together and traveler 2...

@ScottMan can you please explain a little more in detail. My electrician and I are trying to understand it. Are you saying we need two dumb/sattelite (only 2 screws) switches and one master...