[SOLVED] Weird artifact when scrolling up super fast

[PrinceTexasLoaf]

hello, so when I was scrolling up super fast I had a weird artifact it was so fast but it was kinda purplish manilla colors and it was just a bar that was a little above the half way mark of my screen anybody know what it is I cant seem to be able to replicate it

 

[jojesa]

Maybe it was a happenstance and you should be glad that you are not able to replicate it.