ID CC2015. Fresh install on brand new PC (WIN 7, 64 bit). Documents crash when changing tools (?), closing the view (?) etc. When trying to retrieve the document, ID shows communicate (translation from polish): "Document contains incorrect frame. Text of the story begins with - [...]. Do you want to remove the frame and the story? Y or N". Either way - InDesign crashes when trying to retrieve. Documents are unavailable and irretrievable.
same problem with me...:(
This appears to be a bug, and we see more reports from CC 2015 than any previous version. You might consider rolling back to CC 2014: How to Find and Install Previous Version of Adobe Apps in CC 2015 | Adobe Customer Care Team