I couldn't find any related issues, so sorry if this a duplicate. Me no smart.

I've been experiencing these odd lighting bugs on my Multiplayer server. They have been showing up on existing chunks and newly generate chunks. I am using the vanilla jar of Minecraft for the server. They do not get fixed when placing torches and/or updating the blocks around them. They are acting like there's a rectangle platform of blocks above them, some even being darker.

Here's their "behavior":  https://youtu.be/4oVXjQ-9hTk