So last week, my YouTube app stopped working properly. I can still access it and it loads up fine, but certain videos just cause a black screen, or an endless loading bar. Some load fine but others don't and it seems random. Is their anyway to fix this?
Does the issue only occur on YouTube or across other channels installed on your Roku device?
If you haven't tried yet, you can remove the affected channel then re-install it. To ensure the process is successful, make sure to restart your device before adding the channel back in. We would recommend doing this from the Settings menu by navigating to Settings > System > Power (If you do not see a Power submenu, skip to the next step.) > System restart.
If the issue persists from one channel after attempting the suggestions above, videos from other channels play fine, contact the channel provider's customer support team to report the issue and get help.
Channels on Roku are maintained by the channel developer themselves. In this case, there's likely an issue within that specific channel that needs to be addressed with an update from them.