Sorry, but I can nor recreate the problem. I have to means of rolling back to try the update again. I suppose its possible that I did not use open sprinkler between the two updates.
Regarding Kindle issues, there is no error message. One odd thing abut the Kindle HD is that when the processor loads up the display dims slightly. If I click on Diagnostics, there is no response except for a dimming display indicating high CPU activity.
I doubt that helps much. There probably are few (if any) people running this App on a Kindle HD, especially since it needs to be rooted.