Facing the exact same issue even while the app in not blacky, just solely on the background proccessing of it’s own.
With Regards,
Jufyi https://plex.software/
https://tutuappx.com/
For me uninstalling and clearing all left over cache and re-installing works pretty well.
With Regards,
Jufyi https://dltutuapp.com/tutuapp-download/
https://showbox.run/