The MFD drag event doesn’t respond on mobile. Attempting to drag on the color pad just moves the camera around. It works properly on a laptop. Also the pointer up/down events are fine (you can drag the map). Adding a pointer down event right ahead of the drag event makes it work, even if the pointer down message isn’t doing anything.
Also not my code, I just found the bug
Just a quick explanation of the UI here. After the MFD initialises, clicking on "Maps" will open up the maps. The small squares allow for colour selection of the widget upon clicking them. On windows, the drag event works fine, however here the event refused to work. Placing a "pointer down" event will let it recognise the touch.
The Vizzy responsible for the event in question is this. It can be found bottom right in the MFD program.