I had replaced some previous files and decided to rework my entire library. However, I would come across some erroneous matches Picard had made, so I would either move the file back to the unclustered section or remove the file from Picard altogether. But when I would go back to scan or lookup the file, it would be processed, but the file now had a length of 6:12:50 from whatever it was previously. If I went into file explorer, the length of the file would be correct, and the same is true if I played the file in Picard. The only fix I have found is using Audacity to manually edit the metadata there since the length is correct in file explorer. This also seems to only be affecting WAV files.