So, I've been working on a collection of short stories and it's come to my attention that book covers for MOBI files made using Calibre are no longer showing up correctly in Kindle for PC/Android/iPAD etc. There is a work around for this by changing preferences to "Enable sharing of book content" but this has the disadvantage of making the books show up in personal documents rather than books on the kindle fire and disabling whispersync. Has anyone come up with a better work around for the problem than this?
Note that the cover art still displays properly inside the actual MOBI file and when the book is opened using kindle. The issue is that in the library (where all of the books are shown as a collection) the cover art defaults back to the standard blue book icon.