[todivefor]

I have discovered a problem with my Tab S2. I am using Kindle for android, Calibre Companion (latest), and Calibre 2.49 on OS X 10.11.2. I have been using Calibre for sometime on my Nexus 7, Galaxy S4, Galaxy S6, Kindle, and now with my Tab S2. I have had S2 for a couple months. When I loaded all my books, I noticed 3 books had default (B/W) bookcovers. I didn't pay any attention. Today I did. Two of the books just have the default bookcover, but are readable. The third has the default bookcover, but is not readable. When tapped it brings up a big thumbnail of the bookcover, but nothing else. I tried loading it on my S6 and it transfers fine. The bookcover in the carousel is the default, but "on device" is what I would expect. I loaded it on my Kindle and it works fine. I tried loading it over USB with only Calibre, same result. This seems to be peculiar to Tab S2. Any ideas? Anything I can do to help troubleshoot?