PSN vid capturing is so garbage. When you want it to capture a whole match but for some reason it captures like the last 30 seconds some times. It doesn't do what it's advertised for.
That hasn't happened to me in forever. How are you saving your videos? I think if you have it set to double tapping the share button, it can have problems. I have it set to where the share button brings up the share menu, and you manually save the clip. I haven't had any problems after that.