I am using the Kindle Fire HD and flipping between apps the file I am viewing will jump from page 59 to 123 almost every time I drag the Kindle Home menu up from the bottom.
This may be an effect caused by the recent Kindle upgrade but this is how it is affecting Adobe on my Kindle. It is not crippling rather more in line with being an annoyance since I need to remember the last page prior to changing apps or scroll until I locate the page.
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