I'm stuck trying to put an item on the pressure plate in a 1x1 cage so I can pick it up from another side. This is in a min-dungeon after you drop down twice from level 6.
As described in the Gamepressure walkthrough (http://guides.gamepressure.com/legendof ... p?ID=14828, section 21) and countless others, I'm supposed to put an item (any item) on the pressure plate (presumably in its left corner?), wait for the door to open and collect the item from the other side. Try as I might I can't do that -- if I put any item onto the pressure plate it's at the close edge and I can't pick it from either left (from beind the bars) or right. The screenshot below indicates that there's a specific place to drop the item onto but no matter where on the screen I drop the item it ends up in the same place on the pressure plate.
This image shows exactly the place I'm talking about:

How to proceed? It seems to possibly be an iPad-specific issue.