Hi Tom,
Yes, I am working with vertical video, here's the complete spec:
- Original media: filmed with 4K with 60 fps
- Main project: 4K (3840 x 2160) at 60 fps
- Side project (the problematic one): vertical (1080 x 1920) at 60 fps
My laptop: Macbook Pro Nov 2023 (M3), iOS Sonoma, 8 gb RAM
Here's the detail of how I usually complete my projects:
- I start with my main project (4K resolution) for my youtube channel >> these ones are usually fine when exported
- Once finish my main project, I create a new project with vertical resolution
- Then I copy parts of my main project, and paste it in the new project >> then I edit the media to fit the screen (usually 200% scale)
- Then I make some minor adjustment for my side project (usually around 1 minute long)
- Then I export the video in H.264 file
This is when the issue usually occurs... and it happens every time I create vertical videos >> this never happens with my standard 4K video despite the file being much larger
Thanks a lot in advance for your help