We would be happy to look further the issue you are seeing. Can you please provide us the following information:
-Roku TV brand and model
(these can all be found in Settings > System > About)
-does this issue occur on a specific channel? if so, what channel and what version/build is the channel (this can be found be selecting the channel on the Home screen and pressing the * button)
-tracker ID when this issue occurs (when you see this issue occur, press the Home button 5 times, followed by the Back button 5 times)
-steps to reproduce the issue you are seeing
Once we have this information we will be able to assist you further.
Can you please provide us with a tracker ID when this happens (when you see this issue occur, press the Home button 5 times, followed by the Back button 5 times)?
In the meantime, I have passed along the information you have provided so far to the appropriate Roku team to investigate further, once I have an update available, I'll be sure to notify the Community.