So I was setting up a blood magic setup and I placed down my enderchest. When I placed, there was nothing there, like just an air block. I cant interact with it with right click or remove it and I cant move through the air block. I can step on it and not fall through it. Coordinates of the block is x 4350 y 61 z -2254.
it might have been a light from an arcane lamp, they spawn little invisible light sources, you can break them, but until you do you can't place a block there (took me forever to figure it out)