Hi there! I see that when you try to open the Rumble app on your Roku, it briefly flashes the screen and then takes you back to the Roku home page. Could you tell me if this started happening recently and if you’ve tried any steps like restarting your Roku device or reinstalling the app?

Meanwhile, I can suggest a few steps to troubleshoot this together:

1. Restart your Roku: This often clears temporary glitches. You can do this by going to Settings > System > Power > System restart. If you don’t see a Power option, just select System restart directly.

2. Check your internet connection: A weak or unstable Wi-Fi could cause apps to crash. Try testing your network or restarting your router.

3. Uninstall and reinstall the Rumble app: Sometimes the app data can get corrupted. On the Roku home screen, highlight the Rumble app, press the * button on your remote, choose Remove channel, then reinstall it from the Channel Store.

4. Clear cache on Roku: While Roku doesn't have a direct cache clear option, restarting the device refreshes memory and can help.

5. Update Roku firmware: Ensure your Roku’s software is up to date via Settings > System > System update.

If after these steps the Rumble app still crashes, it might be an issue on the app side or compatibility with your current Roku firmware. In that case, contacting Rumble support or checking for Roku system updates can help. You can also notify me if you’d like me to escalate this further or check if there’s an ongoing outage.

Let me know what you've tried so far or if any of these steps help!