FTB Unstable 1.10 v4.2.8 crashing on startup

  • Tech Support section is for getting help with FTB related problems. If there's a repeatable issue that can be labeled as a bug, then please use the issue tracker for the pack or the app at GitHub issue trackers - If there's no repository for a pack that means that the pack is old and/or will not be updated. Bugs for older packs will not be fixed, unless they are critical.


New Member
Jul 29, 2019
java.lang.OutOfMemoryError: GC overhead limit exceeded

Go to the options tab in FTB launcher and use the slider to increase the maximum RAM to at least 2.5-4gb, depending on your system's available RAM