Welcome @Loverofnothin,
Thank you for informing us that the Crunchyroll app is not functioning on your Roku 4 streaming device. It only displays a black screen and returns to the Roku home screen. No worries; we are here to help you with this issue.
Could you please tell us the software version of your Roku 4 device? To locate this, please follow the steps below:
- Press Home on your Roku remote
- Scroll and select Settings
- Select System
- Select About
Additionally, we would like to know if you have checked the other application to see if it has the same issue.
We will wait for your response.
Cheers,
Roku Community Team
Riamie D.
Roku Community Moderator