I am running Paper 1.21.4-177 and PhatLoots 5.6.7
I am creating an event on my server which requires certain mobs within a worldguard region to drop custom loot.
For most of the mobs we're using (like endermen and hoglins) this works as intended. However, for mobs like Wither Skeletons and Piglin Brutes, the editor gui completely breaks and you can move items around within it.
Broken GUI Example:
