I've only seen this on raids. Just before the advanced loot stops working and you have to loot from the chest, if there is more than one item, like three of them, the advanced loot window sometimes only shows two of them. So, unless when first opening the chest I make a list of the items and how many there are, I can later see the wrong amount of them and it mess up our guild bidding because I offer for bidding the wrong amount of them. When I do bidding and move down the items, by the time I get to some items and maybe 14 minutes have passed, I might only see 2 of an item when there are 3 of them. Really, I was hoping that the announcement in the past that Advanced Looting was being revamped would fix a bunch of issues. Frankly, there should be an option to use advanced loot for the entire 30 minutes and not have it time out after 15, if the Master Looter wants it. So, yes, I'm reporting an annoying bug and also asking for a feature change in the same thread but I'm really tired and messed up my guild's looting tonight because of this bug. Thank you for your time and consideration.