@jameson If you need to restart the camera, it seems to me like you’re running into an old bug:
https://forum.sailfishos.org/t/main-camera-does-not-start/1905/31
I have run into it also with Camera apps and the flashlight.
With Verla though, on my device Advanced Camera (front) just stopped working, no matter how many times I restart it, I just get to see the buttons on a black screen.