Bug Report

What's the issue you encountered?

I've installed a fresh new Forge-Server for my friends and myself. We wanted to use Biomes O' Plenty together with TerraForged Mod. The Map is getting generated but as soon as there are BOP Biomes, the objects are kinda missing (see Screenshot). Also the new Items aren't on the Creative Mode available.

I've also noticed that with BOP enabled, I am able to "float/fly" even in normal Survival-/Creative Mode. After a short amount of time I get kicked from the server (since Flying (not Elytra) is disabled a normal).

Logs

Only have the Debug Log of the Server. There are no Crashlogs.
debug.log

Screenshots

Mod Version

Forge-Server: 1.16.5 - 36.0.14
Java OpenJDK: tested with 8 and 11
BOP: 13.0.0.431
TerraForged: 0.2.3

You need the mods installed on the client too. That's how 99% of mods work.