Mod conflicts

ConcurrentModificationException — two threads touched the same list

What the log looks like

java\.util\.concurrentmodificationexception

How to fix it

  1. A mod bug, not a setting you can change
  2. The first mod package in the trace is the one to report it to or remove
  3. It often only shows up with a second mod installed, so note the pair
SeverityStops the game
CategoryMod conflicts

Check your own log

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