I worked three hours on a project yesterday setting up VST's editing midi tracks etc etc saved (and I 100% saved) it as a new project. I go to do more work on it today and it is exactly as the original imported MIDI file project was when I started it!!!
 
First time in about 20 years this has happened!!!!

Are you sure you loaded the newer version? 

If you saved the data, it's there somewhere. Check the project properties for the date and time to see if it really is the one you saved.

Thanks ...yep did ALL the usual checks, even a Windows Explorer search for the entire DATA drive...nada!
 
Doesn't matter I have just restarted the entire project

I made a mistake once saving a template then continued to work on the project. Audio went into the original audio folder and midi was saved in the template. I was hopelessly confused until I figured out what happened.

When I opened the original project it appeared as it did before I created the template, but the audio was in the audio folder.

Thanks guys -  a BIG mea culpa here ....As it was an imported MIDI, the save routine was set to save as MIDI, not normal (or a .CWP) and of course VST and other audio is not saved when save as midi is done. So when I did all the work and did my usual CTRL-S (which I do about every 50 seconds hahaha!) it only saved it as the MIDI.

And a BIG thank you to you for coming back and letting us know what happened.
Much appreciated!
 

Yes you have my respect for your return. Thank you. 

I've done the same thing and posted a thread about it asking if people lost files.  I saved it as a template.  D'oh.

+1
I've done it too.