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Ocarina of Time (Mac) - Flickering purple horizontal line follows the primary display #1821
Description
What happened
Purple horizontal line flickers across the 3D scene in Kokiri Village. The in-game HUD covers the line where they overlap. The line comes and goes during gameplay
I see the line when playing on the TV (with my external TV set as the primary display in macOS). After I set the built-in display as primary, the line disappears on the TV and appears when playing on the Mac display
What you expected
The scene should render without a flickering purple line on either display, regardless of which display is set as primary
Game, title ID and version
The Legend of Zelda: Ocarina of Time (Switch 2), 0400486024DEC000
nxnative commit
cd5e9aabb77a
Shader chain version
3ee52af3ca18
How it was built and run
Mac app (--platform mac-app)
Device and OS
MacBook Pro, Apple M4 Pro, 24 GB unified memory, macOS 27.2
Settings and environment overrides
none
Tried with both Metal upscaler enabled and disabled, the output is the same
Logs
0400486024DEC000.log
0400486024DEC000.prev.log
zelda-flicker.mp4
No game files
- Nothing attached here contains game files, keys or data extracted from a game.
Activity
PaulEins commentedon Nov 10, 2026
Same here: MacBook Pro 14" M4 Pro (20-core GPU), 48 GB, macOS 26.7.2, TV over HDMI, mirrored. A ragged purple band runs across the top of the picture (photos: a house in Kakariko). It appears only with Display mode Fullscreen; with a maximized window on the TV it does not show. Build
f02aecbb(main37f076a5+ #1707 + #1708).Written with AI: Claude Opus 5.5 · Responsibility: PaulEins