Accessing the inventory of an NPC's corpse causes the NPC's equipment to disappear.

[Yreless]

When you open the inventory of an NPC corpse using NewGame data, the weapons and armor there will disappear and will be converted to gold instead.

At this time, effects such as green smoke or orange explosions may appear.

Oddly enough, when you open your inventory, NPCs can respawn as spirits and even turn hostile.

I don't know which MOD is causing this symptom, so could you please tell me?

LoadOrder_SkyrimSE_2025-02-22T13-09-12.txt