The issue is that when I use PowerDirector on my Android phone, the phone and every app on it gets locked into landscape orientation. Of course, my phone switches to landscape orientation when I edit a video project in PowerDirector. That's the default orientation.
However, if I switch to another app on my phone, it remains locked in landscape no matter what. Even when I exit from PowerDirector and close the application, my phone stays locked in landscape until I reboot the phone. I've tried everything I can think of to fix this problem, but it won't go away.
I suspect that it is an issue between PowerDirector and my phone, which is a Xiaomi Redmi Note 9 Pro. But I don't know that for sure. This doesn't happen with any other application. It only happens when I use PowerDirector.