in addition to my previous report, I have had bugged hands just as frequently as on non- experimental. Possibly more frequently. (So zero improvement with the new patch. Potentially worse.)
If I kill a player I generally will not be able to loot almost any of their items. My horrendous workaround is to carry the loot, 1 piece of clothing at a time, to a safe location. Once I have the pile, I have to log out and back in with 1 piece of clothing in my hands. Then I can loot that item fully. So I potentially have to relog to loot: pants, jacket, vest, backpack. So 4 relogs to loot a single player.
After doing almost any looting of a player, my hands will almost certainly be bugged and I won't have what I think I have in my hands. Causing serious issues if I need to fight a player or infected. So then I have to relog. Again.
Sometimes my hands will get bugged after doing almost nothing. Only interacting with my own gear that I've had for days causes it sometimes.