Flickering purple line above picture when playing movies on HBO max
Only for HBO Max movies there's a flickering purple line above the picture when the size is set to auto. When it's set to normal its on the top edge of the picture but still visible. I've tried changing picture settings but it doesn't go away unless I change the size to Zoom. The app is updated. Has anybody had this happen and gotten rid of it?
Have you checked other channels if the same issue occurs? Also, if you haven't tried yet, you can remove the affected channel and then re-install it. To ensure the process is successful, 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.
Please be advised that if you are removing a subscription channel billed to your Roku account, you must cancel the subscription first before you see the Remove channel option. No worries, you won't be charged again for the app upon unsubscribing as long as it is within the validity date.
For clarification, does this issue only occur on the HBO Max channel or does it occur across all channels? In addition, have you tried connecting your Roku device to another TV to see if you are experiencing the same issue occur?
Please keep us posted what you find out and we will be able to assist you further.
We would recommend removing the channel from the Roku home screen by navigating to the channel tile, pressing the * key on your remote, and choosing 'Remove channel'. Then restart your device from Settings>System>System restart. Once your player starts up again, add the channel back once more. To help troubleshoot the issue further, follow this link: How to resolve a channel playback issue
Hope you'll find this information useful. Let us know in case you've still got any questions.