How do I resolve iMovie permissions issue for camera roll and music access?

I’m having a bit of a problem with iMovie. It’s asking for permission to access my camera roll and music, but I’ve already given it full access to the camera roll. But it still wants me to let it access the music, and there’s no way to do that. I’ve tried pressing continue, but nothing happens. And even though I have a good internet connection, the app is lagging and the screen is just sitting there. It’s like iMovie is totally frozen. I can’t even use it at all!