Opening chest in bag

This goes for D/E as well. Whenever your bag is full and you try to open a chest, it will say "bag full please expand" or simular when it should just replace the chest itself. I am on the android version so I do not know if this is happening on the other OS.

[Koenaj]

It's designed that way.
The moment you receive the new item, the old item has yet to disappear, so there isn't any available slot.