Thread: Red horizontal line on the horizon in iGO Luna (Android 15)

Hi everyone,

I'm facing an unusual graphical issue in iGO Luna 9.35.2.263562 (64‑bit) with Pongo skin (30 Sept 2025, 64‑bit) on Android 15 (Realme RMX3834). A thin red horizontal line appears exactly at the horizon in 3D view.

What I’ve observed
- The line stays fixed at the horizon regardless of map orientation (North, South, etc.).
- It becomes much more visible at high tilt levels (e.g., 8900).
- Changing 3d max tilt level in sys.txt doesn’t remove it — even at 8200 the line is still there.

Current sys.txt

[map]
3dmaxtiltlevel=8200
3ddefaulttiltlevel=8200
3dmaxzoomlevel=10000

[debug]
max_memory=524288000

Looking for advice
Has anyone encountered this red horizon line before?
Could it be related to:
- sky rendering changes in Android 15,
- something in the Pongo skin, or
- a specific UX plugin affecting 3D/sky layers?

Any hints on which sys.txt entries or UX files might cause this would be very helpful.

A screenshot is attached.

Thanks in advance!

Spoiler: screenshot

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