Incomplete set of tags received from server. Even after installing a fix it occours.

im having the same issue, fresh install from here https://www.curseforge.com/minecraft/modpacks/crafttoexileharmony/files/3130410

Can you provide a log, or at least a screen shot of the screen when this happens?
I can't seem to recreate this issue

Can you provide more details? WDYM by reinstalling the fix it still occurs?

Is this a completely new world?
Pre-existing world from 1.1.0c?
Does it happen every time you make a new world?

Apparently has to do with using the wrong jar file