Oh, if the TC of the proxies do not match the TC of the full res files, the DP should be blamed.
There is a way to do a batch change, if there is a ‘logic’ in the file naming.
If you have eg full_res.mov and full_res_proxie.mov, you can do a batch ‘save attributes’ in QTchange, take those sidecar files and put them next to the proxies, use ‘load attributes’ and set the TC / Reelname.
But, if you’ve already edited, you need an XML dance, that I ‘might’ be able to provide, but no guarantees.
Bouke