When reloading/loading the plugin I see a ton of this:
02/12 20:52:13 | Item's Held Entity not removed!Bandage -> bandage.entity[249322]
02/12 20:52:13 | Item's Held Entity not removed!Bandage -> bandage.entity[249324]
02/12 20:52:13 | Item's Held Entity not removed!Hatchet -> hatchet.entity[249340]
02/12 20:52:13 | Item's Held Entity not removed!Flare -> flare.weapon[249364]
02/12 20:52:13 | Item's Held Entity not removed!Flare -> flare.weapon[249574]
02/12 20:52:13 | Item's Held Entity not removed!Siren Light -> planner[249650]
02/12 20:52:13 | Item's Held Entity not removed!Ceiling Light -> planner[249669]
02/12 20:52:13 | Item's Held Entity not removed!Flare -> flare.weapon[249791]
02/12 20:52:13 | Item's Held Entity not removed!Crossbow -> crossbow.entity[249903]
02/12 20:52:13 | Item's Held Entity not removed!Chainlink Fence -> planner[249944]
02/12 20:52:13 | Item's Held Entity not removed!Flare -> flare.weapon[249961]
02/12 20:52:13 | Item's Held Entity not removed!Timer -> planner[249973]
02/12 20:52:13 | Item's Held Entity not removed!Hunting Bow -> bow_hunting.entity[249997]
02/12 20:52:13 | Item's Held Entity not removed!Metal Vertical embrasure -> planner[250117]
02/12 20:52:13 | Item's Held Entity not removed!Flare -> flare.weapon[250154]
02/12 20:52:13 | Item's Held Entity not removed!Stone Pickaxe -> stone_pickaxe.entity[250158]
02/12 20:52:13 | Item's Held Entity not removed!Stone Pickaxe -> stone_pickaxe.entity[250160]
02/12 20:52:13 | Item's Held Entity not removed!Fluid Combiner -> planner[250290]
02/12 20:52:13 | [BetterLoot] Populated '6782' supported containers.
02/12 20:52:21 | Item's Held Entity not removed!Flare -> flare.weapon[250428]
02/12 20:52:21 | Item's Held Entity not removed!Flare -> flare.weapon[250432]
02/12 20:52:22 | Item's Held Entity not removed!Hunting Bow -> bow_hunting.entity[250476]
02/12 20:52:22 | Item's Held Entity not removed!Hunting Bow -> bow_hunting.entity[250750]
02/12 20:52:22 | Item's Held Entity not removed!Hunting Bow -> bow_hunting.entity[250868]And then periodically it outputs more, is there some debug stuff left in?