Visually misplaced lighting

Myself and another realm member are noticing a strange bug with the lighting in areas outside of areas we’ve lit. There’s no sources of light placed in there areas, yet we can see strangely placed areas of light where monsters can still spawn.

The owner of the realm has not seen these lights, I guessed that the difference between his playtime and us who did see the lights that night was that he hadn’t traveled in the nether that night, so I tried restarting the game and checking again without going into the nether, but I still see them. All three of us are on Xbox, I have pc as well, but it isn’t in a reliable state at the moment.

Areas I’ve checked were generated before 1.16, in 1.17, in 1.18, and on the edges of different areas

While reviewing the screenshots I’ve taken of the lights, I’ve realized there’s also areas that contain torches, but re not lit.