The latest version causes a server crash during startup. It's getting a NoClassDefFoundError exception looking for net.minecraft.client.entity.EntityPlayerSP. Here is the full crash log.

Just curious, what causes this type of error? Is it build related?

Looking id say its a SinglePlayer class trying to load in a multiplayer instance

oh yeah..it was a reference to Minecraft.class in DankNullUtils.class..The Minecraft class is not accessible server-side. I had forgotten to annotate the method to be client-only.

shit..thanks lol..will have new version up momentarily

Annoyingly FTB shipped their Release of FTB Horizons III with this broken version.