1- Android didn’t show all screen and user could not tick the box to include file. There was no way to show the missing part of the popup upload manager window.
2- In a different test that showed the full width of the pop-up screen, (so the user could tick the files to upload), when trying to load 3 pictures, the user could only check the first two. the checkmark on the third picture would not be visible. when trying to scroll up or down, the content on the pop-up window would not move (only the background page would go up and down). So it was not possible to move the screen around to check the box for the third image.