I even exported the clip (lossless) with only the Warp Stab, reimported it and then added the grade, which results in the same issue. I've tried nesting, adjustment layers, CUDA/hardware accel/"maximum render quality" settings, and different order of effects. So it seems as if this is an issue with trying to use certain effects + a color grade with an Input LUT. I tried a different stabilization technique - with the Mocha Plug-in - and even without doing any stabilizing, just enabling the effect causes the issue again. I've tried different Warp settings, but this doesn't change anything with the export. When I add or remove Warp Stabilizer on this clip, it causes this weird color banding / bit rate crush on certain parts of the image, like the sky in this example shot. My workflow is: Import LUT from another program as an "Input LUT" in Lumetri > add additional grading in Lumetri. I understand that the camera can have some color banding, but that is not the problem here. This footage was shot on a Sony PXW-FS7 ii with Zeiss CP.3 35mm T2.1 cine lens in SLOG-3.
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