Does this happen to all killed NPCs? The map doesn't necessarily assure to drop items/characters "on" the ground. For example right before the big tree in Whiterun, I am repeatably able to drop items "under the surface". Nonetheless, knowing where they dropped I can still pick them up again.
Not all - about five of my previous 20 kills. It has happened in various locations, but three of the 20 have happened at the dungeon for the Pommel. The pertinent info is in my OP.
I've noticed this as well. Seems they thought that making corpses dissapear quicker would help the stability/framerate issues. All its done is prevent us from looting them.
Its an old story with Bethesda. Partially fix one thing by nerfing/breaking something else.
I've experienced this in patch 1.2. I've only recently updated to patch 1.3, in fact to deal with this specific Briar heart (A few one shots due to the magic resistance bug made me go for the update).
The 1.3 patch, it is reported, increased (made longer) some reset timers... This is happening
instantaneously after the kill (non-enchanted one handed sword).
I could reload the save, kill him again but I'm sure the error would not reproduce, as it is occurring randomly for me.