Timeline made up of Red Epic-W, Epic Dragon and Scarlet footage at a mixture of 4K, 5K, 6K and 8K resolution final output from the r3d files. Some clips are 75fps but with speed changes and optical flow. Lumetri LUT loader has a basic LUT on some of the clips.
Comp resolution is 4K in width but 1200 high for a Widescreen projection.
Audio is 5.1 with a .wav imported via Audition.
Exporting to a custom resolution for upload to vimeo. h264 dual pass, 15mbps target 20 max.
Crashes after around 70% progress - not just Adobe Media Encoder and Premiere, but the whole Mac, requiring a restart.
Footage stored on GTech Studio XL, exporting to desktop - plenty of space there for the file <800MB.... Mac pro 2013, 6 core, 32 GB RAM, D700s.
Got the timeline to export to prores 4444 - seems like it was crashing as it hits the epic-w 8k footage. Prores to h264 has worked ok so presume it's the step from r3d to h264 with 8k epic-w footage causing problems...