I have the Kindle Paperwhite and created an X-Ray for Eragon without a problem but I get the "X-Ray is not available for this book" error message with the code of SX on the bottom.
I have tried providing only the bare minimum (Shelfari, ASIN, and GUID) but I get the same error. I don't know what I need to do to get it working.
Note: My mobi file did not have the ASIN attribute so I added it via the MobiMetaEditor. Will it work this way?