Sort of. Last night I put my PW on to charge and was reading. When I went to change the page a window opened with font sizes and it would pick a different sized font seemingly at random. I tapped for the menu and changed the font size. I tapped to back up one page and got a new font. size. I swiped to change page and got a new font size. I did a hard reset and the problem persisted.
Then today I plugged in my PW to see if it would do it again and, it didn't.