Hi.. I'm editing Sony FX9 Slog 3 Cine footage. When I look at the footage in the source monitor in the assembly tab, it looks like Flat Slog 3 footage. When I move in onto my timeline, it looks like Premiere Pro adds a LUT to the footage. I don't want it to do this, I want to grade the footage myself starting with the flat footage. See picture below. Left is the source monitor (flat footage), right is the Program monitor. There are no lumetri affects applied.
It seems like the timeline color space is set to Rec.709 (Sequence > Sequence Settings). This S-Log3 to Rec.709 conversion might be the reason for the contrasty look of the timeline. Right-click on the media in the Project panel > Modify > Interpret Footage > set Color Space Override to Rec.709 & check if it restores the flat preview.