I am using 2.0.6 on Windows 7.
I recorded several takes of a friend playing violin, all in the same project window.
Soon after she left, Audacity was not responding and I realized I hadn’t saved anything yet. After an hour of waiting for it to respond on its own, I forced the program to close. When I reopened it, it indicated there was a project to be recovered. Great! However, when the project re-opened, the tracks were present, but there was no audio (each track had a flat blue line, though each was the length of the original recordings).
I’ve searched in the temp folder(s), but they are empty. Did I lose the audio? It’s no big deal, as this was just for fun, and re-recording more takes isn’t a problem.