Issue: Lighting does not work in small areas, creating a dark shadow. Breaking or placing a block fixes this. The issue was not present in 1.19.22.01 and started after updating the server to 1.19.30.04
Tried: Restarting server, moving world to a SP client and back, reinstalling server software, updating Linux OS.
Interestingly, the issue did not occur in single player mode, so I feel this bug is related to the server software.
Here are some screen recordings: https://imgur.com/a/5mUQtN8