All 4 of us on our server are also having the same problem with looting. Opening a chest will freeze for a second and prevent using anything until the container is destroyed which remains in a state of "item in use" but also says it's empty. We are going to try update to the new stable (previously using the old) to see if it makes any difference. It's only happened with the dark brown chest in the loot rooms so far! now we have avoided those chests after day 1 and 2 seeing the issue replicated in other Pois among all 4.
Yes - copied all the files correctly
only 1 person is trying to loot the chest at the time
no red/yellow text in console for client or server