Lightroom Classic 15.6 on Mac: Develop panels appear black in ChatGPT Computer Use captures and clicks land on different controls

Description
Reporting an interoperability problem between Lightroom Classic and ChatGPT desktop Computer Use, at the user's explicit request. The root cause is unconfirmed; this may lie in the capture/control layer, Lightroom rendering/accessibility, or their interaction. The same issue has been sent to OpenAI Support.

Environment
Lightroom Classic 15.6; macOS 15.7.1; Apple M4 Max; ChatGPT desktop 26.1023.51421 (build 22530). Three external displays: DELL U2720QM (1), main display; DELL U2720QM (2); DELL P2721Q in portrait orientation. Observed October 28, 2026. The raw image was a Fujifilm GFX 100S RAF.

Steps observed in this session
1. Open a raw image in Lightroom Classic's Develop module with both side panels visible.
2. Capture the Lightroom window through ChatGPT Computer Use.
3. Interact with a visible panel control and capture the window again.
4. Compare the capture with the user's actual screen and verify any editing action in Lightroom History.

Expected
The capture shows the same visible controls as the user's screen, and a click targets the displayed control.

Actual
The user sees normal Develop panels throughout. The tool initially captures them, but subsequent captures show black areas in place of the side panels, top module picker, and bottom filmstrip; the photograph and center toolbar remain visible. Two coordinate clicks selected presets roughly four rows (about 80 screenshot pixels) below the intended target. The unintended edits were undone and verified. Native menus and standard file dialogs respond reliably. The exposed macOS accessibility tree includes menus and some center-toolbar controls but does not expose the Develop sliders to this tool. Safe image-specific editing is therefore blocked.

Tests already performed without resolving the issue
Reconnected/reset Computer Use; quit/reopened ChatGPT; tested normal window mode; temporarily reduced Lightroom's ordinary window on the already-main display (capture approximately 1853x1053 versus 2560x1356). Panels still appeared black in the tool capture. Original window size was restored. No GPU setting, display resolution, or Lightroom preference was changed during the final test.

Please investigate or advise on a supported capture/accessibility/control workflow that requires no Lightroom plugins. This has not been independently reproduced on a second machine. No photos, catalog data, personal paths, or private logs are attached.