Mine for the Aura HD is (2.8.1) :
It keeps the footer in Amasis font, because when you change the font, the page xx of xx line becomes very ugly, when you change the font in the reader settings the font of the footer changes with the same font.
Also I discovered that when you patch the first time, the footer is out of place, when you go to the book, settings,change the margin slider,set it back,then end, it is just in place.
With the above settings there is a bit of white space under the line page xx of xx and it doesn't matter anymore which reading font you take,the footer stays in amasis.