Just a note, I made two lights for this:

1 is in the negative direction witch is above the floor torch, (Light pointing down)

2. the other is tilted possitive, and is inside the torch to have light comming from inside the torch...

--- I removed one light with the same error..



I moved my floor torches south in the area that they glitch in - as to have a quick fix to solve the glitch, but now it happens on the other side of it too..