Import audio not showing in project or pool

I can’t seem to import an audio file into my current C5 project. C5 goes through the process of copying to work directory etc but when it’s finished importing the audio is nowhere to be found. It’s not in the project or the pool window. I can’t find it anywhere! I tried importing a different track and it worked fine so no sure what buttons I’ve pressed this time. Any ideas?

what format is the audio your trying to import ?