video cache local vs. sd card

I recently shot some video with my drone but was over the cache limit on my app. The video is stored on my drone, I can see the file but I have no idea how to get the video into my DJI app to edit it. I can't edit it on my computer because it can't handle 4k Any help here would be awesome

I've recorded multiple videos and surprisingly some are on my phone but NOT on the SD card. I believed that all videos were recorded to the SD card and then if selected, videos and photos could also be cached to the local phone. It appears that in my case sometimes the videos are not being...