[Server thread/ERROR] [net.minecraft.advancements.AdvancementList]: Couldn't load advancement academy:ac_exp_full: Task Advancement{parentId=academy:ac_milestone, display=net.minecraft.advancements.DisplayInfo@1d198798, rewards=AdvancementRewards{experience=0, loot=[], recipes=[], function=null}, criteria={ac_exp_full=net.minecraft.advancements.Criterion@38a0e3ee}, requirements=[[ac_exp_full]]}

Version: 1.1.0_beta5-56ef188
forge:2806
sponge:RC3526