Why is a device missing or using the wrong saved direction?

If a device is missing from the panel

1. Check that the device is powered on, connected to this Mac, and works as a pointer in macOS. A paired Bluetooth device must also be connected.
2. Check the cable or receiver if you use one. If appropriate, reconnect the device and reopen the Radar Mouse panel.
3. Look for the hardware’s name, Built-in Trackpad, or the generic Pointing Device label. External names come from what the hardware reports and may differ from the name you expect.
4. Quit and reopen Radar Mouse to request a fresh startup device snapshot.
5. If another device of the same model is connected, read the shared-entry limit below.

The list is intended to update when devices connect or disconnect; there is no Refresh button. Rows for disconnected devices disappear. Their saved direction choices are not deleted just because the rows disappear. Radar Mouse does not provide a command for renaming a device.

If the list is empty, the panel says Connect a mouse or trackpad to set its scroll direction. Device detection does not depend on the Accessibility grant used for reversal. Radar Mouse lists devices that macOS exposes as mouse or pointer hardware, so a device that works through another interface or an unusual driver may not produce a separate row.

If the choice changes after reconnecting

A saved choice follows a reported device identity, not merely the displayed name. Radar Mouse uses a nonempty serial number first, then vendor and product identifiers, then the device name if those identifiers are unavailable.

If the device reports the same identity, its saved choice should return. If it reports a different identity through another connection method, that connection can start with the default: Reverse for a mouse or Natural for a trackpad.

For example, your customized Bluetooth mouse may need a separate choice when you connect it through a receiver. Set the choice in that connection once and check it again when you return to Bluetooth. The app has no control for merging those identities.

Renaming a device usually does not change a serial-based identity. It can change a name-based identity when stronger identifiers are absent. If a highlighted segment looks different after reconnecting, also check actual scrolling: a stale highlight is a separate known symptom.

If identical mice share one row

Two devices that report distinct serial numbers can receive independent saved choices. If two identical mice have no serial number and report the same vendor and product identifiers, Radar Mouse treats them as the same saved identity. They can collapse into one displayed row and share a choice, even if their names differ.

This is a device-identification limit. Renaming the mice does not separate them when the app is using their matching vendor and product identifiers. There is no “add another device” or “separate these devices” command.

To check whether this matches your symptom, compare the panel with one mouse connected at a time, then with both connected. Record the models, connection methods, and displayed names for support. Do not assume a hidden row means the second mouse is disconnected from macOS.

If one of several mice ignores its choice

Some driver software recreates scroll events without identifying the original device. Radar Mouse then tries to infer a likely device from the scrolling type and from devices it has already identified in the running session.

If it cannot select exactly one candidate, it uses a fallback: reverse mouse-type vertical scrolling and leave touch-type scrolling unchanged. That fallback can disagree with your saved choice. It can even do so when two mice are both set to Natural, if another device keeps reversal active.

1. Note all connected pointing devices and their intended choices.
2. If practical, connect only the affected mouse and check its vertical scrolling in a long document.
3. Reconnect the other devices and check each one in turn.
4. Scroll once with the other mice, then check the affected mouse again. Record whether the result changes.
5. Record any mouse-driver or scrolling utilities, including Logi Options+ if present, and whether you use Bluetooth, a cable, or a receiver.
6. Quit and reopen Radar Mouse and repeat the comparison if the problem depends on connection order or the current session.

These steps help identify an ambiguous event source; they do not guarantee independent control for events whose device identity is missing. A Magic Mouse can also produce touch-type events, so a touch-type fallback is not always proof that a trackpad produced the event.

If your goal is simply to have all devices follow macOS, choose Natural on all connected devices. That stops Radar Mouse’s reversal processing. It does not solve the separate problem of choosing different directions for devices whose events cannot be distinguished.

If a trackpad has a mouse icon or starts on Reverse

Radar Mouse makes an initial guess about device kind using the built-in flag, the reported name, and known Apple trackpad identifiers. A renamed or unfamiliar external trackpad can be classified as a mouse.

Choose the direction you want under that device’s name and check its actual scrolling. The saved choice overrides the initial direction default. For an event that Radar Mouse can identify directly, your device’s choice is used regardless of the icon.

If the choice still fails when other devices are connected, follow the event-source checks above. Device kind also matters when events cannot be matched directly, so correcting the selected direction alone is not a guaranteed remedy for an ambiguous source. The app has no manual “mouse/trackpad” type selector.

What to include in a device report

Include the Mac and macOS version, the Radar Mouse version or download, and:

• Each connected mouse or trackpad’s make and model.
• How each connects: Bluetooth, direct cable, receiver, or another method.
• The exact name and icon shown for each device, and whether two devices share one row.
• Which device you scrolled with, the segment you clicked, and the actual direction.
• Whether each device behaves correctly by itself but fails with others connected.
• Any input-driver software and whether scrolling with another device changes the result.
• Whether the symptom follows reconnecting, changing transport, sleep/wake, or a relaunch.

You do not need to send a device serial number publicly. Describe the models and connection methods first; support can request further details if needed.