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• Updated MonitorControl to the latest version (if applicable)

Describe the bug

I'm running into an issue when using MonitorControl with a MacBook and two external monitors connected via USB-C. Whenever I adjust the brightness of the built-in display (using keyboard brightness keys), I’m no longer able to control the external monitors with the same keys. To regain control, I have to open the app and reselect the external displays manually.

Steps to reproduce

1. Connect 2 external monitors via USB-C
2. Use brightness keys to adjust external monitors → works fine
3. Adjust brightness of the built-in Mac display
4. Try adjusting brightness again → external monitors no longer respond

Expected behavior

Brightness keys should continue to control external monitors (or all displays, depending on settings) without needing to reopen or refocus the app.

Anything else?

No response

Environment Information (please complete the following information)

- macOS version: 26.2 Tahoe
- Mac model: MacBook Pro (16-inch, 2023)
- MonitorControl version: 4.2.0
- Monitor(s): Dell Flat Panel 27" P2722HE with USB-c and RJ45 x2
- Apple Silicon/M1 (yes or no): no