Champions: 2.1.5.4
ScalingHealth: 6.2.1+4
Forge: 40.1.25

note: ScalingHealth itself has a bug that if it loads before forge, it cause the entire game to dead lock. It can be fixed by requiring it be loaded after forge

Stack Trace:
When creating a new world, calling LivingEntity::getOnPos on initial spawn will cause server dead lock