We had an issue with the same file being added to the FMOD project twice. This was most likely due to a bad Subversion update.
Validation detected the duplicate audio file correctly and repaired the project correctly.
However, it did something unexpected: it deleted the audio file as well. Now, the project was repaired, but the banks couldn’t build, because the audio file was missing. Perhaps FMOD Studio assumed that the audio file was duplicated in the assets folder, but there was only one copy.
Once we understood what happened, we resolved the issue, I just wanted to report what might be bad behaviour of the repair function.