"dual screen (stretch)" does not work as intended

[namenamenam]

Describe the bug
When connecting to the host PC, with the display type set to dual screen (stretch), the display does not appear correctly. The top screen stretches down and obscures the bottom half, as intended. However, the bottom screen does not turn on, and instead remains black. However, touch input still works correctly.

To Reproduce
Steps to reproduce the behavior:

1. Connect to host PC
2. Set display type to dual screen (stretch)
3. begin streaming the Desktop app
4. Be unable to see the bottom half of the screen

Expected behavior
I expected the bottom display to actually show the bottom half of my desktop, slightly cropping the display around the corners so the image has a consistent width as it does on the top screen.

Screenshots

Desktop (please complete the following information):

• OS: Windows 11 26252.ge_prerelease.240705-1329
• Browser: Google Chrome
• Version: Version 126.0.6478.127 (Official Build) (64-bit)

Smartphone (please complete the following information):

• Device: Old 2DS
• OS: Sys 11.17.0-50U

Additional context
Streamed via Sunshine

[TacoBell77]

I don't have this specific issue, but there are a plethora of issues with stretch mode, even though it would be incredibly useful if it worked.