Sometimes I see light through solid blocks. My favorite solid block example are the iron blocks, as shown in one of the screenshots below. It looks as of light sources are placed on the shown wall, but I assure you that there are no invisible light sources on front of the wall. There are only lights in the rooms behind. Also, to make two issues in one, I have noticed that the top and bottom halves of beds do not match. I think this is also a lighting bug. I have searched for lighting and I found no others, so this is not a duplicate. My example uses cyan beds but this also applies to the other bed colors too, although it is less noticeable on certain colors like black. I have seen other bed glitch reports but the colors slightly being off have not been reported.