Due to the recent change of multi opening boxes it now gives a prompt to use more than 1 item at once which is really awckward to pop while fighting mobs. I think this may be a bug as the item does not seem logical to use more than 1 at a time at any point.
This has not been resolved just burnt 5 church buffs because I had the use max equipped in a combat situation. Unless you want to activate multiple stacks of 120 min and stack them please remove this item from the List of multiopen items.