4 Comments

  1. Assuming these are the recommended args for the pack and rhe modpack starts up when leaving the field blank, you might have copied something extra when copypasting the args. If thats not the case, Id try removing some one by one, see if you can find out what exactly the culprit is.

  2. Your source for the argument mention the JVM to use?
    oracle, openjdk, graal, etc?

    UseCompactObjectHeaders may not be in oracle jvm, but is in openjdk etc…