{"slug": "meta-ai-mac-app-screen-sharing-fails-silently-on-macos-13-6", "title": "Meta AI Mac app screen sharing fails silently on macOS 13.6", "summary": "Meta AI's Mac app fails to share individual windows on macOS 13.6.1 (Ventura), returning a NULL from CGWindowListCreateImage and aborting with 'No shareable content found', according to a user report on the Meta AI forum. The issue affects Electron-based editors like VS Code and Cursor, with a suspected ScreenCaptureKit version mismatch between Ventura (1.0) and Sonoma (2.0). A workaround using 'Share Entire Screen' works but exposes private content, and the user seeks confirmation from Sonoma users to test the version-gate theory.", "body_md": "# Meta AI Mac app screen sharing fails silently on macOS 13.6\n\nHere's what I've ruled out so far:\n\n**Environment**\n\n- MacBook Pro M2, macOS 13.6.1 (Ventura)\n- SIP enabled, no third-party kernel extensions\n- Screen Recording permission granted to\n`com.meta.aimac`\n\nin System Settings → Privacy & Security - Accessibility permission also granted (tried both with/without)\n\n**What the logs actually show**\n\n`log stream --predicate 'subsystem == \"com.meta.aimac\"' --level debug`\n\nyields this when I click Share Window:\n\n```\n2024-12-19 14:22:11.342 MetaAI[12487]: [ScreenCapture] Requesting capture permission for window 0x7f8b...\n2024-12-19 14:22:11.344 MetaAI[12487]: [ScreenCapture] CGWindowListCreateImage returned NULL for window 0x7f8b\n2024-12-19 14:22:11.345 MetaAI[12487]: [ScreenCapture] Falling back to full-screen capture\n2024-12-19 14:22:11.347 MetaAI[14:22:11.347 MetaAI[12487]: [ScreenCapture] SCShareableContent.current.excludingDesktopWindows: false\n2024-12-19 14:22:11.348 MetaAI[12487]: [ScreenCapture] No shareable content found, aborting\n```\n\nThe `CGWindowListCreateImage`\n\nreturning NULL is the smoking gun. That window ID (0x7f8b) belongs to my VS Code instance — confirmed via `CGWindowListCopyWindowInfo(kCGWindowListOptionOnScreenOnly, kCGNullWindowID)`\n\n. The app *sees* the window but can't snapshot it.\n\n**Things I've tried that didn't work**\n\n1. Restarting the Mac (twice)\n\n2. Revoking/re-granting Screen Recording permission via `tccutil reset ScreenCapture com.meta.aimac`\n\n3. Running Meta AI from Terminal with `--enable-logging=verbose`\n\n— no additional output\n\n4. Disabling \"Displays have separate Spaces\" in Mission Control (some ScreenCaptureKit apps choke on this)\n\n5. Testing with a non-Electron window (Terminal.app) — same NULL return\n\n**Workaround that kind of works**\n\nIf I choose \"Share Entire Screen\" instead of a specific window, the overlay appears and the model can read my screen. But that defeats the privacy model — I don't want the LLM seeing my password manager or private Slack DMs. The per-window path is explicitly advertised in their launch blog post, so this feels like a regression, not a missing feature.\n\n**Suspected root cause**\n\nThe `SCShareableContent.current.excludingDesktopWindows: false`\n\nline suggests they're filtering out desktop-level windows, but VS Code on Ventura registers as a regular app window (layer 0, not the desktop layer). Something in their window-filtering logic is misclassifying Electron/Chromium windows on macOS 13. The fallback to full-screen capture then fails because `excludingDesktopWindows: false`\n\nexcludes everything.\n\n**Ask**\n\nHas anyone gotten per-window sharing working on Ventura (13.x)? Specifically with Electron-based editors (VS Code, [Cursor](/en/tags/cursor/), Zed)? I'm wondering if this is a ScreenCaptureKit version mismatch — the app bundles its own `ScreenCaptureKit.framework`\n\nstub, but Ventura's system version is 1.0 while Sonoma ships 2.0. If they compiled against the Sonoma SDK but didn't weak-link properly, the `SCShareableContent`\n\nquery could return empty on older macOS.\n\nIf you're on Sonoma 14.x and it works, that would confirm the version-gate theory. Also happy to test a TestFlight build if the Meta team monitors this forum.\n\n[Next Llama 3. →](/en/threads/6858/)", "url": "https://wpnews.pro/news/meta-ai-mac-app-screen-sharing-fails-silently-on-macos-13-6", "canonical_source": "https://promptcube3.com/en/threads/6957/", "published_at": "2026-08-19 17:30:50+00:00", "updated_at": "2026-08-19 17:58:29.231182+00:00", "lang": "en", "topics": ["ai-products", "ai-tools"], "entities": ["Meta AI", "VS Code", "Cursor", "Zed", "ScreenCaptureKit", "macOS 13.6.1", "Ventura", "Sonoma"], "alternates": {"html": "https://wpnews.pro/news/meta-ai-mac-app-screen-sharing-fails-silently-on-macos-13-6", "markdown": "https://wpnews.pro/news/meta-ai-mac-app-screen-sharing-fails-silently-on-macos-13-6.md", "text": "https://wpnews.pro/news/meta-ai-mac-app-screen-sharing-fails-silently-on-macos-13-6.txt", "jsonld": "https://wpnews.pro/news/meta-ai-mac-app-screen-sharing-fails-silently-on-macos-13-6.jsonld"}}