
The order of processing, and how things are done, matters immensely. Effects that don't deal with color/tonality can be 8-bit and work fine. I need to solve this issue for many clips, this is just an example of oneĮffects that change color/tonality at all should of course be 32-bit. Happens on multiple computers (windows 10)

In terms of the 32-bit / 8-bit effect pipeline, this is making no sense to me. This is not a codec/file format issue, I've tried using ProRes and others as the export, and even as the input file (converted before adding the effect), which did not solve the isssue. I really don't want to do this for a lot of my clips. The only (terrible) solution I've been able to come up with, is exporting the clip (lossless) with the grade first, then adding the warp stabilization after. I do have HSL Secondary enabled to desaturate some blues, but this is not the issue, as disabling it still presents the same problems between using / not using an stabilization effect. 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.
