Need to turn Rec 709 to S-Log3. Source Settings not working.
Upon import to Premiere, footage from a project I shot on a Sony camera (.mxf files) was automatically turned to Rec 709. I was able to change all the clips to S-Log3 and edited a full rough-cut, but now opening the project after a twenty-day period, the files all somehow reverted back to Rec 709, and the way I recall changing the Source Setting/Color Space is no longer working.
Several clips I sent (in S-Log3) to have VFX applied had come back to me, and they remained in S-Log3 even though every other un-VFX-ed clip reverted to Rec 709.
When I right-click a clip in the Library/Bin, I go to "Source Settings...", and nothing happens; no window pops up. Similarly, I can't Modify/Interpret Footage as the Color Management tab is greyed out.
How can I get my footage back from the automatically applied Rec 709 to S-Log3?
Help is much appreciated!
2017 Macbook Pro
macOS Ventura 13.1
16GB RAM
Premiere Pro 2023 Version 23.1.0 (Build 86)