Iphone videos only playing audio

OW3NLOL Posts: 4 Just Starting Out

I'm doing a video where i record a second of every day in 2021. I have recorded these clips on my iphone and i can watch them on my phone aswell. I back them up to google photos then download them off there to transfer them to my pc. That has always worked for me usually. However, this time once i have downloaded the videos it is only audio that plays with a black screen and says something about codecs. So i downloaded vlc media player and can now watch them on there with video and audio. But once i put them into hitfilm only an audio track is put in. Some of the clips work and others don't. Is there any way to fix this?