Several times now, the loot window bugs out and I'm unable to issue loot to characters in the raid. When I pick "leave on corpse" the item(s) remain in the bottom portion of the window and cannot be issued to anyone. We have to wait until 13 minutes when the corpse unlocks. It's happened twice to me, and two more times to guild members (unassociated, playing elsewhere in the game).
This is a duplicate of this bug post: unable-to-leave-assign-loot-duplicate-item-in-advanced-loot.278843/ Make sure to "like" the first post in that thread to upvote it.