@Webeevdrivers I had an experience on FSD v12.3.6 that I think you will appreciate: At a four way stop it came to a stop, then started to proceed, stop, start, stop, start, etc. At first I couldn't see what was causing the problem, but then I looked up and saw a flashing red light, which it was going in sync to. (I think trees were blocking my view of the red light as we came up to the stop.) I disengaged and reported it.
Weirdly I went through three more intersections with the same setup and it did just fine. (But none of them had trees blocking the flashing light from a distance.)