Weird light behaviour

Hello guys. I have been experience a weird issue lately. The setup is easy, 2 rooms with a center common wall. I made sure everything is edge-to-edge perfect as in alignment so there will be no bleeds or others things. This is built on Production lighting. Why is this happening? There are 2 static lights, one in each room.

Ok I found the problem with that out. I had a box reflection capture in the other room.