I tend to smoke occasionally when gaming. Twice now I have logged off for a cigarette and come back to log in with many of my items missing.
The first time I lost my shoes and bag along with everything inside my pockets and the mag for my weapon.
The second time I lost my bag, shoes, pants, and all items within my inventory for my shirt.
I'm not sure if this is some sort of anti-combat logging feature but in both instances I was well away from any other players in the woods and had not had any combat for over an hour prior.
the items disappearing were in varied conditions including pristine and in both cases many of the items I had in my possession for at least 5 hours.
In both cases my weapons and head gear were unaffected.
I exited to the main menu in both cases.