im having a similar problem .
camera not working
I have cssu testing installed .

no fcam drivers ( had them at some point in time but removed)
1. the camera takes the 1st picture w no problem but when i'm taking sey a second picture , the captured image gets stuck on the screen it stays black and blank sometime . It doesnt render any change even when the capture button is depressed .
moreover my photos don't save to my default camera folder.
there no way of locating my pictures now.

If no solution any tips on downgrading to cssu stable would be nice since thats proving to be a feat as well

Any help would be greatly appreciated.