In case the Muse hard crashes your files can be restored, therefore a temp file is located in %HOMEPATH%\AppData\Local\Temp\Muse.
If you restart the Muse, you will be asked, if you want to recover a file that has been found in this location.
You can choose, if you want to save, open or delete the tempfile. By clicking continue, nothing will change, but you will be asked again what to do with the tempfile on the next startup of the Muse.
When opening the recovered file for the first time, you will regconize that the screenshots in the center are missing. Please save and reopen the file and the screenshots are restored.