4.7.2 Can't Remove or Hide UMG Button

I’ve now got the visibility working on my PC, but the button is never appearing on my Android Shield Tablet.

I’ve got Print Screens firing every tick within the Event Graph of the Widget and whenever the Button is being set to visible. These appear as expected on the PC, but never on the Shield. I’ve checked the cooked folder and the Widget’s Uasset is present. Any ideas?