FIx: If you remove the mod for Herobrine, everything is fine. Experience spheres fall only if the player has killed a creature, and not any mob of another mob.
Possessed creatures do not appear by themselves, only from eggs.
In the combination of Herobrine + Spore, I found a strange bug. The spore allows you to target mobs so that infected people attack mobs and mobs attack infected people. And with the addition of Herobrine, their experience begins to drop.
UPD: The problem is actually with the Herobrine itself. Even the iron golem drops spheres of experience by killing zombies. Apparently, for some reason, Herobrine changes some kind of tag for all entities, making them players, otherwise I do not know how to explain how spheres of experience can fall when killing creatures by each other without being a player.
The problem persists in 1.0.8.2 and 1.0.7.1
Mobs simply reset the experience even when only End of Herobrine is installed
The errors below are old and not related to Spore.
[22:36:31] [Render thread/WARN] [ne.mi.re.ForgeRegistry/REGISTRIES]: Registry minecraft:block: Object did not get ID it asked for. Name: endofherobrine:patimuss_door Expected: 1952 Got: 6567
[22:36:31] [Render thread/WARN] [ne.mi.re.ForgeRegistry/REGISTRIES]: Registry minecraft:block: Object did not get ID it asked for. Name: endofherobrine:armor_stand_base Expected: 1957 Got: 6568
[22:36:31] [Render thread/WARN] [ne.mi.re.ForgeRegistry/REGISTRIES]: Registry minecraft:item: Object did not get ID it asked for. Name: endofherobrine:patimuss_door Expected: 3621 Got: 4582
[22:36:31] [Render thread/WARN] [ne.mi.re.ForgeRegistry/REGISTRIES]: Registry minecraft:entity_type: Object did not get ID it asked for. Name: endofherobrine:armor_stand Expected: 469 Got: 140
FIx: If you remove the mod for Herobrine, everything is fine. Experience spheres fall only if the player has killed a creature, and not any mob of another mob.
Minecraft 1.20.1 Forge 47.3.5
The errors below are old and not related to Spore.