Hi,

this was reported originally on the Thaumcraft issue tracker: Azanor/thaumcraft-beta#1101

If JustEnoughIDs is installed together with Thaumcraft (or some other mods like Blood Magic or Chococraft) on a server the game crashes (everything works fine on a client)

Mods used to test this issue (no other mods installed):
Baubles-1.12-1.5.2
JustEnoughIDs-1.0.0-6
Thaumcraft-1.12.2-6.1.BETA17
forge-1.12.2-14.23.4.2705

Crashlog: https://pastebin.com/raw/rANqdfe3

Thanks for looking into it. :)

Best regards,
wamc

Duplicate of #9