Artifacts on both video render and video export. PE2023

[Joseph252392241qnr]

Premiere Elements 2023 - OS X - Apple Silicon

I'm getting massive artifacts when applying any effect to footage in both the render and the export.

I'm trying to do a very simple color grade.  Nothing crazy.

Both the footage and the sequence are 3840 x 2160 / Pixel Aspect Ratio 1.0

I think Premiere Elements can't handle: DJI's D-Cinelike Color Profile --- but others have color graded their footage using it no problem.

Footage Video Codec is:  MP4/MOV  H.264 10 bit 4:2:0

Issue still occurs if I check / uncheck Max Bit Depth on Render too.

The attached file is the 10 second color grade using iMovie vs Premiere Elements.  The comparison is to show that it's not the footage as the issue.

Suggestions?

[Joseph252392241qnr]

Update:   iPhone footage with a HEVC 4:2:0 codec works fine as color corrects and renders without issue.   It's appears that the issue is with the DJI Codec Type: MP4/MOV H.264 10 bit 4:2:0 codec.

Suggestions?

[John T Smith]

Use https://handbrake.fr/ open source transcoder/converter to make a file that will edit

[Joseph252392241qnr]

I was hoping not to have to transcode, but I think that's the only solution.

[John T Smith]

Also, if your video is not 30 frames per second I have read other messages indicating that type of video at 60 fps will not work well

[Joseph252392241qnr]

I've tried every combination of footage imaginable.  H.264 / H.265 - Normal / Cinelike - 30fps / 60fps.  I also

PE 2023 will no color grade without artifacts in both the render and export.  I'm playing back in VLC

To test the footage, I'm also grading it in iMovie (which is extemely limited) and there are zero artifacts in the render and export.  So I know its not the footage.  The issue is PE 2023.  I'm hoping there is a setting that I don't know about that's off. 

And Handbrake didn't help either.  I tried also tried a constant bit rate and it still showed the artifacts.