mob entity not rendered / invisible

[evilflora]

Your GTNH Discord Username

evilflora#1416

Your Pack Version

2.7.0 Java 8
2.7.1 Java 8 (Edit 2, i've updated the server this morning 30/12/24, the problem is still here)

Your Server

Hosted Server

Java Version

Java 8

Type of Server

None

Your Expectation

I've setup a quick mob tower, enemies are killed by diamond spikes, loot and xp is vacuum by vacuum hopper and transported to chest

The Reality

but after a few minutes, efficiency is reduced due to invisible/ not rendered entities until not working att all, they are pushing rendered entities upward the waterstream, weapons does nothing (we cant see them), F3 + B does not show them, command /kill @e does not kill them, the only solution I found was to setup some command blocks to change difficulty to peaceful then back to normal (edit 2: also we can hear enemies)
edit 1 : also rebooting the server has no effect, and going away even for hours does not despawn them
edit 2: after some testing we found that its possible to have a dimension without enemies, mob cap being reach no enemies can spawn if the chunk with invisible entities is loaded

Your Proposal

can you fix the bug ? thank you

Final Checklist

• I have searched this issue tracker and there is nothing similar already. Posting on a closed issue saying the bug still exists will prompt us to investigate and reopen it once we confirm your report.
• I can reproduce this problem consistently by follow the exact steps I described above, or this does not need reproducing, e.g. recipe loophole.
• I have asked other people and they confirm they also have this problem by follow the exact steps I described above, or this does not need reproducing, e.g. recipe loophole.