Sometimes the window server or Finder stops registering scroll inputs from applications.

Before diving into complex system settings, rule out basic hardware and power anomalies that cause touch-surface responsiveness to drop. Clean the Touch Surface

Turning Bluetooth off and on isn't enough. You need a hard reboot of the mouse hardware.

Try toggling the scroll settings off and on again to reset the preference file. 3. Disconnect and Re-Pair the Mouse

A weak or glitched Bluetooth connection can cause specific features like scrolling to drop while basic tracking still works.

If you have tried everything above and it still won’t scroll, you may have a third-party app conflict. Apps like "BetterTouchTool," "Scroll Reverser," or mouse acceleration utilities can sometimes conflict with system updates.

The battery compartment contacts can lose tension over time. If the mouse disconnects during rapid movement, fold a small piece of aluminum foil and place it between the battery negative terminal and the contact spring to secure the connection.

Wipe the top surface with a lint-free micro-fiber cloth slightly dampened with water or 70% isopropyl alcohol.

Does the mouse or iPad?

The Magic Mouse has a unique "seamless" design. There are no physical buttons, but the sensor detects the electrical charge of your finger. If the surface is dirty, oily, or scratched, it cannot detect the "swipe" gesture required for scrolling.

Open (press Command + Space , type "Terminal", and hit Enter).