Re: Sound balance for AirPods Pro is missing on macOS
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If you haven't already: You might try updating to MacOS 26.1, to see if that helps.
If needed check for available updates: Apple menu > System Settings > General > Software Updates.
Reminder: It is always wise to back-up Mac before updating th MacOS version
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If you are already using MacOS 26.1 and the issue remains:
You might want to send feedback to reach those who work on the software behind-the-scenes at Apple:
If others are also experiencing this issue, we may see an update that addresses it. The more info. Apple receives on which devices and OS versions are affected, th more likely we will see the issue addressed.
Web-form for Feedback - MacBook Pro - Apple