hmm that's interesting. i would check to see if you are seeing HandItem assets from all the vanilla 7 Days code as well, for example: meleeHandPlayer, meleeHandZombie01, meleeHandZombie02, meleeHandZombieFeral, meleeHandZombieBurning, meleeHandZombieCop, meleeHandzombieMutated, ammoProjectileZombieVomit, meleeHandAnimalZombieDog, etc.
if players on your server are also seeing these, then i'd check whichever mod is being used that display these items are accidentally displaying assets that are hidden. i do know that the vanilla handItems above as well my enZombies handItems like enHand_2025_015_AAAAAAA are correctly hidden via XML code. i'd be curious to know what you find.