2. Video File Size Issues - Since the default Cloud storage is 512MB for every user, larger video files will be rejected by the Online Editor. After all, CapCut is designed for short videos in the first place. If you also want to create long videos or use 4K 60fps/120fps videos that are usually large in file size, it would be easier and more stable using 4K video editor on desktop/laptop instead of online (check the laptop for video editing).