I start a new project importing a package, open it, save it and close it. And then, the next day, when I open Studio again to continue working on it again, it's gone!
Fortunately, the project itself is still there, in the folder I chose initially, but I have to open the studio project file to continue working. This is very annoying. I think this is related to Windows 8 or 8.1, because it didn't happen on Windows 7.
Thanks in advance.