Mac Pro 2019, 16 core, Vega Pro II, Radeon VII, Afterburner, 256GB RAM.

Footage attached via thunderbolt 2 RAID

Footage is Red Helium 8K files at 59.94 fps

Files are 35mins each in length and project typically has 2 files to do on each export.

Basic colour correction and grade, with 3 nodes of noise reduction.

Outputting to ProRes 422HQ

Plenty of space on RAID

Getting random flickers to black on the exported file, no errors from the export.

Anyone have any suggestions as to how to solve this issue??