I have almost 20G of videos on my iPhone and every time I try to view or share there is only a black screen.
The only way to get WYZE videos in the iPhone album is if you downloaded them from the WYZE app or recorded from playback. Did you download all those videos? What shows up when you go here?
May I know if you are using ios 15.5 or 15.4.1? Could you copy a snapshot of the blackscreen that you mentioned? Thanks!