Users are being kicked from my server with Network Protocol Error for not having the mod installed client-side.

Logs -

disconnect-2025-03-30_20.34.01-client.txt

No errors on the server, it just reports a disconnect. This happens only after a player has died atleast once.

Only server has Universal Graves installed, as it is marked as a Server-only mod on Modrinth:

The error is fixed by installing the mod client-side, but I did not know to add it to my modpack due to the above. Either this is a bug, or the above tag on Modrinth is due an update.

Make sure to install latest polymer version for your mc release

Make sure to install latest polymer version for your mc release

idk why I totally missed that too lol thanks

I think it should be set as a hard dependency or be clearer on the modrinth page, it's very easy to miss!