Old GoPro Footage Not Uploading Video, Only Audio

I'm having issues uploading some old GoPro footage. The footage was shot on a GoPro that is at least five years old. Footage shot on my brand new GoPro uploads just fine.

Please check out this quick screenshare video for a visual: https://www.loom.com/share/0db56fb644444c568a868995fa618182

The first GoPro video is from my old one and shows that I'm only able to upload the audio. The second attempted GoPro video is from my new one and it works fine.

Thanks!