# \[Roku 4\]Black screen momentarily appears on the Player when clicking the Up/Down button of the remote. **URL:** \ **Category:** Archived\ **Tags:** roku-developer-program\ **Created:** [March 9, 2018, 3:07am UTC](https://forum.developer.roku.com/t/roku-4-black-screen-momentarily-appears-on-the-player-when-clicking-the-up-down-button-of-the-remote/7099 "2018-03-09T03:07:05Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![q2andrap](https://avatars.discourse-cdn.com/v4/letter/q/54ee81/32.png) [@q2andrap](https://forum.developer.roku.com/u/q2andrap)\ **Post date:** [March 9, 2018, 3:07am UTC](https://forum.developer.roku.com/t/roku-4-black-screen-momentarily-appears-on-the-player-when-clicking-the-up-down-button-of-the-remote/7099/1 "2018-03-09T03:07:05Z")
Hey All, I’m facing a weird bug on Roku 4 as in the attached video. Could you please take a look and give me some suggestion to address it. **This issue only happened on Roku 4.** Thanks, Quan [[Attached Video](https://drive.google.com/file/d/1cEMO_mnZ__37a1W8A9L9GUND2feDniwH/view)] ---
**Author:** ![norcaljohnny](https://avatars.discourse-cdn.com/v4/letter/n/59ef9b/32.png) [@norcaljohnny](https://forum.developer.roku.com/u/norcaljohnny)\ **Post date:** [March 9, 2018, 8:38am UTC](https://forum.developer.roku.com/t/roku-4-black-screen-momentarily-appears-on-the-player-when-clicking-the-up-down-button-of-the-remote/7099/2 "2018-03-09T08:38:01Z")
Thats an AppleTV 4 not Roku my friend 😉 ---
**Author:** ![q2andrap](https://avatars.discourse-cdn.com/v4/letter/q/54ee81/32.png) [@q2andrap](https://forum.developer.roku.com/u/q2andrap)\ **Post date:** [March 9, 2018, 10:08am UTC](https://forum.developer.roku.com/t/roku-4-black-screen-momentarily-appears-on-the-player-when-clicking-the-up-down-button-of-the-remote/7099/3 "2018-03-09T10:08:12Z")
> “norcaljohnny” wrote: > Thats an AppleTV 4 not Roku my friend 😉 > Sorry, my bad. I just updated the correct url. [https://drive.google.com/file/d/1cEMO\_mnZ\_\_37a1W8A9L9GUND2feDniwH/view](https://drive.google.com/file/d/1cEMO_mnZ__37a1W8A9L9GUND2feDniwH/view) > Please take a look and give me your advice 🙂 ---
**Author:** ![norcaljohnny](https://avatars.discourse-cdn.com/v4/letter/n/59ef9b/32.png) [@norcaljohnny](https://forum.developer.roku.com/u/norcaljohnny)\ **Post date:** [March 9, 2018, 12:06pm UTC](https://forum.developer.roku.com/t/roku-4-black-screen-momentarily-appears-on-the-player-when-clicking-the-up-down-button-of-the-remote/7099/4 "2018-03-09T12:06:55Z")
There we go, thats a Roku. Without seeing some kind of code it would be a wild guess as to what it could be. ---
**Author:** ![q2andrap](https://avatars.discourse-cdn.com/v4/letter/q/54ee81/32.png) [@q2andrap](https://forum.developer.roku.com/u/q2andrap)\ **Post date:** [March 12, 2018, 8:10am UTC](https://forum.developer.roku.com/t/roku-4-black-screen-momentarily-appears-on-the-player-when-clicking-the-up-down-button-of-the-remote/7099/5 "2018-03-12T08:10:52Z")
> “norcaljohnny” wrote: > There we go, thats a Roku. > Without seeing some kind of code it would be a wild guess as to what it could be. > Hey, I’m not able to share the code here but as you can see in the video, I have many components in a holder view which need to scroll (translation) up/down to see others and the small size video player is one of them. Everything worked fine excepting the Black screen momentarily appears on the player when clicking remote up/down. It seems the video surface was scrolling/translating slower then its parent view. This just happened on Roku 4. > Is there anyone from Roku support team can help me on this? 😞 ---
**Author:** ![Komag](https://avatars.discourse-cdn.com/v4/letter/k/5fc32e/32.png) [@Komag](https://forum.developer.roku.com/u/Komag)\ **Post date:** [March 13, 2018, 4:26pm UTC](https://forum.developer.roku.com/t/roku-4-black-screen-momentarily-appears-on-the-player-when-clicking-the-up-down-button-of-the-remote/7099/6 "2018-03-13T16:26:00Z")
Maybe something to do with that other thread about screen.Clear() and screen.swapBuffers() and how it’s handled on different models? ---
**Author:** ![q2andrap](https://avatars.discourse-cdn.com/v4/letter/q/54ee81/32.png) [@q2andrap](https://forum.developer.roku.com/u/q2andrap)\ **Post date:** [March 27, 2018, 6:10am UTC](https://forum.developer.roku.com/t/roku-4-black-screen-momentarily-appears-on-the-player-when-clicking-the-up-down-button-of-the-remote/7099/7 "2018-03-27T06:10:27Z")
> “Komag” wrote: > Maybe something to do with that other thread about screen.Clear() and screen.swapBuffers() and how it’s handled on different models? > Hey, I don’t know. Do you know how to control this on scene graph application?