Logic Pro x project revert to previous...

I am trying to work on some projects where I want to access previous versions.

When I load the project it 'seems' to load all the previous audio files, however, when the project has finished loading non of the audio files are showing. I then use the 'revert to previous' option which shows a file but once this is loaded it hasn't changed the information the project window at all, and STILL non of the audio files are showing...

Bit perplexed TBH, thought it prudent to seek some Jedi like powers from those with deeper technical knowledge of the 'force' required to resolve this...