Has anyone else lost their collections? I had 800 books sorted into about 75 collections. I also had 1 collection that I was using to flag books that needed to be fixed. After I emptied it out I deleted that ONE collection. Now everything is gone. All my books still think they belong to a collection because the the Show Books without Collections filter is empty. I can add and delete new collections but there's no trace of the ones that matter.
If the collections didn't disappear this app would be just about PERFECT.