Thank you so much for your quick and well explained Answer !! I just edited my whole BP and it seems to work now! Thx ! I am only using 1 function to update the lights like you did, as well as the OR/AND nodes to check the switches.
And thank you for the tipps on the EventTick, i wasn’t quite sure what Event to use there. I will work on that too.
My blueprint is a total mess now. As soon as I have cleaned up the code and everything is still working, I will post my solution with screenshots!
Thanks again for the help!