I understand.
But they all refer to the same media files.
Try this:
Save as you project so you are working from a safe copy.
If you go to the timeline and right click on a bad clip, there is an option to reveal the clip source in the project panel.
In the project panel right click that clip and choose make offline (BUT MAE SURE YOU CHOOSE MEDIA FILES REMAIN ON DISK).
then, take the offline clip, right click it and choose “Link Media”
then find the correct media file.
This should fix it in the project panel and the the timeline.
Alex