r.Lumen.Reflections.DownsampleFactor split screen artifact

In Split-Screen, with "r.Lumen.Reflections.DownsampleFactor" set to 2, it is possible to have vertical colored artifacts on View 1 (the second view).

The Licensee reported the artifact occurred on "High" Scalability. In testing, we observed it occurred on "Epic" Scalability. Different runs gave different results on if the artifact would show up on which scalability level.

1. Download the Licensee's test project, compile, and open (see addl info URL)
2. Set the Engine Scalability to "High" or "Epic"
3. Run PIE
4. You might see the artifact right away. If so, skip to step 7.
5. Set "r.Lumen.Reflections.DownsampleFactor" to 1 and then set it back to 2. If this does not immediately show the artifact, try again. Sometimes it does not show up every time. When you see it, skip to step 7.
6. If this does not work after a few iterations, return to step 2 and choose the other Engine Scalability level.
7. Observe the vertical colored lines in the lower screen that appear on the characters.

[UE-23848] Bug Status

I am not able to find world outliner how to enable it?

What method is used to fill polygonal regions when drawing spline mesh at run time?

How does UMG set overlapping layouts?

How does TextureRenderTarget2D get TArray<uint8> type data?

How to achieve HLSL Multiple Render Target in Material blueprints?

What property of the Slider is the image used when dragging?

How to properly terminate the DoWork thread function in FAsyncTask?

What properties of the progress bar can be used for drag and drop highlighting?

How can PaintContext be used as function parameter in OnPaint?