Can someone explain to me why when I press and hold an item to drag it to box for the marketplace to transfer or buy/sell or shrine things it just wants to save an image of the item to my phone rather than let me place it in the box and do what I want with it? What am I doing wrong?

click the item, then click where you want it. its like "selecting" it

tap item once, then tap the box in the marketplace.
the first tap is to select the item, the second tap is to select where it's going.

if you have an issue on mobile where the item info box doesn't show after tapping it once, try refreshing the page a few times.

Thanks both of you.