Multiplayer desync happening with splashes when a player walks through water. Disabling that effect in multiplayer (and not hooking the event at all) might resolve it?

Might not be this, might be canal builder...

I bet it is something else since I've made this and tested this in multiplayer with my friends. Also the mod does not really cause any state changes it just spawns "particles" so shouldn't be able to cause desyncs.

Yeah it's seeming fine so far, pretty sure it's still CanalBuilder. ^.^;