Have a new camera. The Canon 5D Mark IV. The container for the 4K files are MOV and the codec is MJPEG.
The camera divides up the files to the max of 4GB on the FAT32 system. I did a 55 minute 4K video, giving me 55 4GB files. I add them all to the timeline to color grade and or edit them.
When all 55 files are added they will go onto the timeline and some of the clips show a thumb and some don't. It's random. What is not random is there is no video either in the preview window or in a trial rendering of a couple of minutes. Sound yes, video no. This is using Edit Pro 13 AND also in a trial of Edit Pro 14.
If I add a few files at a time to the timeline, I can get up to about 27 before the video is no longer being viewed.
I am using Win 10, 64 bit, 64GB ram, RX 480 8GB video card and 1TB SSD drive. The Vegas Pro 14 is set to 8 bit mode (not 32bit floating).
What limitation am I hitting, and can I get past it? Premiere Pro will open and read the files and give me video viewing and rendering (exporting). It gets more bogged down as I add color grading.