Open 1.8.2(1.11.2): Client Crash on enabling Opis

[lordicon]

Version:
1.8.2(1.11.2)

What is the bug:
Client Crashes when Starting New world or Connecting to Server when Opis Enabled

I have also submitted this issue to ProfMobius on the Opis Tracker

https://bitbucket.org/ProfMobius/opis/issues/125/client-crash

Mod & Version:


Paste.feed-the-beast.com log:
See Opis Issue Tracker for crash log

Can it be repeated:
With a new Download of the 1.11.2. Enable Opis and mobiouscore start up new world
Client Will crash

Known Fix:
Don't upgrade your server unless you have other means to find entity issues