resolve missing files - changed tempo?


I recently had to move some of my cubase projects to clear disk space. When I open the projects, the sound files in the pool cannot be found and I am given an option give me ‘missing files’ and the opportunity to ‘resolve missing files’ by choosing the folder. I am able to go to the correct place and open the files and they are all found BUT any live audio files (not the digital instruments) are wierdly ‘out of time’ or tempo with the basic track. I have checked the tempo’ in the transport and they are the same, but playing at a different speed?

I can sometimes resolve this by ‘exporting’ the sound files and reimporting them, and they sometimes seem to resolve the tempo. But usually this does not work?

Any ideas why this might be happening when I import ‘found’ pool audio files into a current project?