Were using this mod on the server, and Sculk Catalysts dont work anymore.

I went in a SP world, works fine.
On server doesnt drop any XP anymore.

Do the clients have Clumps installed?

since its not told in the description: no
should it be?

Do I have to install it client or server side?
For 1.17 or newer versions it is only required on server side.

Ok i found out what the "problem" was.
We have the Magnet Command-Mod installed, and when its on "OnBreak" setting then the xp orbs dont drop at all.
Has nothing to do with XP-Clumps :)
Thanks tho for trying to problemsolve with me 👍

Please try install it on the client and see if you still experience the issue, it could be a desync.

i did. no xp still.

Do you have any other mods installed on the server?

yes, but i dont know of any xp changes other than ur mod
do u know of any incompatibilities?