@frosty hornet uploaded a log,
when i press f3 it goes back to normal but its unplayable in f3 mode. only triggers when the dungeon starts, fixes after entering boss room
- OpenJDK 64-Bit Server VM, version 1.8.0_392
- Forge 11.15.1.2318 on 1.8.9
- OptiFine M5
Recommendations: - Unless you know what you're doing, modifying your JVM args could have unintended side effects. It's best to use the defaults.