Render settings for Davinci Resolve 20

I am trying to render 4K drone footage from a DJI Air3s using Davinci Resolve 20 for Pond5. I keep getting error messages when I upload to Pond5 that the codec is corrupt. I have tried H.265 and H.264 and ProRes. Nothing seems to work. The footage is shot in DLOG-M, 4K, H.265, 30fps.
I have also tried changing the quality settings as well.
Any help would be appreciated.