Screen Size changed


A couple of days ago the screen on the mobile changed aspect. In the image below there is the Web View, Design mode that shows correctly and 2 mobile screen snips showing a gap between the buttons and the bottom of the screen. Only thing unusual I can think of is I added a app icon. Which I have not worked out how to delete.
Anyone able to point me in the right direction to correct the screen display?

Ta James

Looks like it was related to yesterdays release maybe.