Sometimes when attacking with a Melee weapon if I get hit there's a probably 50/50 chance my character's vanity items vanish, turn invisible or hide or whatever and suddenly starts dealing rapid damage to the enemy so long as they're in contact with it, if this bug manages to kill an enemy, instead of dying normally it just despawns not dropping any items. Bosses, normal enemies, pretty much anything that can take damage, any On-Death functionality is overwritten and it just disappears instead.
To recreate this issue,
1. Enable either of the mods lists I uploaded with this post (The bug occurs in either one)
2. Pick any close ranged melee weapon
3. Attack an enemy.
4. If it didn't happen yet try a couple more times.
If anyone knows what mod/mod config setting it is or at-least has in mind a potential culprit please let me know.