The mobs in my mods act very strangely; they walk around sideways and when they are attacking me, they move very slowly and keep twitching between looking at me and looking in an arbitrary direction.

There are a few other odd things that happen, like I can't see lightning spawned by my entities.

 

I've never done a server mod before, can anyone tell me what I need to do to make my entities work properly?

I'm registering my entities and their spawns with both ModLoader and EntityRegistry, but I don't know what else I need to do for both the server and client or how to do it.

Bump this, I've the same problem D=

code and i might be able to help