Mine too. Roku Ultra. Continually reboots. Sound comes first for about 5 seconds and then picture comes on for about a half second. Then nothing for about 5 seconds and then the cycle starts all over. During the reboot the LG tv displays "This app will now restart to free up more memory."
I'd be happy to take a closer look to see how we can help get you up and running. Can you please provide us with more specific information about the issue you are experiencing? What Roku model device are you using? How are you powering the device? Is it plugged into the TV USB port, or is it plugged into the wall outlet with the provided cables? In addition, have you tried using another HDMI port on your TV as well as trying your device on another TV to see if you are seeing the same issue?
Please keep us posted and we'll continue assisting you from there.
We'd like to gather more information about the issue you're running into. Does the issue only occur on a specific channel or all channels on your Roku device? What troubleshooting steps have you taken so far to try to resolve the issue?
With more information, we will be able to assist you further.
Does the issue only occur on Prime cross other channels installed on your Roku device?
Have you tried removing the affected channel Prime and then re-install again? If not, we suggest starting there. In some cases, removing the affected channel and then re-installing it may help. Restart your device before re-adding the channel back in to ensure the process is successful. We recommend doing this through the Settings menu by navigating to Settings > System > Power (If there is no Power submenu, proceed to the next step.) > System restart.
am also having this issue on two of my Roku TV's one is a recent purchased ONN Tv Model H507X from Walmart it is also updated to 11.5, and also on my older Hisense Tv Model Number 32H4030. This issue happens on pretty much almost every channel app, some times as soon as I enter the app , sometimes just after I start a movie or show, and at least one during the movie or show that I am watching, it happens when the tv has just been turned on or even after its been on for hours, It has happened twice today just on my Hi-sense tv while I was trying to watch a move on Netflix, and also on Disney+, it happens on Amazon Prime Video, HBO MAX, ABC, ABC30, Tubi, The Roku Channel, YouTube Tubi, Peacock, Paramount +, Pluto Tv, Starz Showtime anytime, Weather Channel, and Weather nation, Watch TCM, The Criterion Channel, Movieland TV (all the time several times during the movies) Free Vee, and also while watching the Antenna input for local TV channels, there are also many more that I can list but I risk making a long list.
This is an irritating issue, I would appreciate some guidance on how to correct this issue, Please.