I don't have any pictures of the zakum map at the moment but in HT this is a huge problem. The drops get hidden behind these walls and when you have important items like egg/ht pendant, hiding, you may loot them by accident when trying to frantically loot skill books from people you bring that are random. The middle animation(blue) does disappear after the boss is dead, but I feel as the side ones should too, I'd even be satisfied if the drop explosion was within the borders so we can see all the drops. It's very important that we the runners see the drops, especially when you're talking about 1b+ items, NX cards and untradeable items such as egg/pendant.