Versions

• Minecraft Version (exact version number): 1.16.5
• Forge Version (exact version number): v.0.172.1.5 / Forge Vanilla 36.1.12
• Mod Version (exact version number): 1.16.5-7.4.0
• Do you use Sponge, OptiFine or Vivecraft (and which?): OptiFine_1.16.5_HD_U_G7

Describe the bug
Works like a charm on singleplayer-worlds with same Minecraft Version, Forge Version, Mod Version and OptiFine Version. However when placing a waystone on our server, the lower half of the waystone vanishes immediately and the entire waystone vanishes on right click giving the level-up sound-effect. Doesn't matter if the placer/user is OP, in creative or survival.

Furthermore, warpstones vanish from the inventory upon using a workbench, making it impossible to craft a waystone outside of creative.

We use a Nitrado server running Forge Vanilla 36.1.12

To Reproduce
Steps to reproduce the behavior:

1. Example: Place a waystone
2. the waystone appears, the lower half despawns immediately
3. right click the waystone
4. the waystone vanishes

Expected behavior
The waystone appears like it does in singleplayer, is renameable and works as fast-travel point to other waystones. You should be able to craft it outside of creative as well.

Screenshots
attached below

Additional context (e.g. Crash Log if it crashed)
N/A

Closing since this is an issue with your server provider and not a mod issue

This sounds like the mod isn't installed on the server. Can you /give yourself a waystone via command?

You're right, indeed I can't. (Unknown item error). The strange thing is, that the mod shows up in the mod management section of the server as running.