I've updated the `Only show multi-touch options on multi-touch devices` in
post #14, it now corrects the help pages on the Glo which currently show the brightness adjustment instructions for the Aura.
There are a number of places in the code where the firmware is mistaking the Glo for the Aura. (the above patch corrects three of them.)
This makes me think the FullScreenReading bug could he caused by a similar problem. I don't know exactly how the Aura's screen refresh works, but if it is doing a Reagl refresh every page and a normal refresh once per chapter, then it could be mistakenly doing the Aura refreshes on other devices when the bug is triggered, except that the other devices don't support the Reagl refresh and so it shows as a sort-of deformed full refresh.