[Bug]: M500 corded mouse detected but middle mouse click not being recognized

[wouterpotters]

Pre-flight checklist

• I searched existing issues and this is not a duplicate.
• I am on the latest release or a recent master build.
• I quit Logi Options+ before running OpenLogi (the two apps fight over HID++ access and only one can own a receiver at a time).

Which part of OpenLogi?

GUI (desktop app)

OpenLogi version

0.8.3

Operating system

macOS

OS version & architecture

MacOS 26.6.2 (25G83)

Device model

Logitech M500 corded (USB)

How is the device connected?

Wired (USB cable)

Affected area(s)

• Device discovery / detection
• Button remapping
• DPI control
• SmartShift
• Per-application profiles
• Battery status
• Settings / configuration (TOML)
• Auto-update
• Menu bar / tray
• Other

What happened?

Checks:

• I removed all Logitech plus / options software and revoked all permissions for Logitech software
• I installed OpenLogi and configured my buttons
• I rebooted the system

Behaviour:

1. the M500 corded mouse is recognized, but it shows more buttons than it actually has. (model M-U00007)

• DPI button does not exist on M500
• only 2 buttons exist on left side of mouse; not 3

2. Scrolling initially failed (but works after reboot; probably conflict with Logi plus or Logi options)
3. I setup the middle mouse button to launch expose or Mission Control, but the middle mouse button keeps opening links in a new tab instead.

Steps to reproduce

1. install OpenLogi software
2. connect and configure mouse M500 corded to open expose / control center on macOS
3. reboot (not required)
4. try to click middle mouse button on MacOS
5. nothing happens

Diagnostics report

### OpenLogi Diagnostics

**App**
- OpenLogi (GUI): v0.8.3 (release)
- Agent: v0.8.3 (connected)
- IPC protocol: GUI 29 / agent 29
- Inventory: ready
- OS: macOS 26.6.2 (arm64)
- Locale: nl-NL (UI: follow system)
- Accessibility: granted · Input hook: installed
- Launch at login: yes · Menu bar: yes · Update check: on
- Running from: source build (dev)
- Config: schema 7 · 1 configured device(s) · thumbwheel 14

**Assets**
- Source: user cache · Index: loaded (210 models) · User cache: present
- Cache path: ~/.local/share/openlogi/assets · Bundle assets: absent

**Devices (1)**
- M500 — mouse (codename: M500)
  - Connection: Wired (USB) · Online: yes · Battery: n/a
  - Capabilities: buttons=yes, pointer=no, lighting=no
  - DPI: unsupported
  - Model: 0c069 (model-ids: c069/0000/0000, ext-model: 00)
  - Transports: USB
  - Render: ⚠️ none (silhouette) · direct

openlogi list output

(inventory read from the running agent)
M500 (—, vid=046d pid=c069)
  └─ slot 255 ● M500 (mouse, wpid=?, battery=—)
          model_ids=[c069,0000,0000] ext=00 serial=— unit_id=00000000 transports=usb

Logs

(no agent reachable — reading hardware directly; macOS judges this process's Input Monitoring grant, not the agent's)
2026-09-01T13:27:12.302419Z DEBUG openlogi_hid::transport: logitech HID node name=M500 pid=c069 usage_page=0xff43 usage_id=0x0202 matched=true
2026-09-01T13:27:12.302777Z DEBUG openlogi_hid::transport: logitech HID node name=USB Laser Mouse pid=c069 usage_page=0x0001 usage_id=0x0002 matched=false
2026-09-01T13:27:12.302782Z DEBUG openlogi_hid::transport: logitech HID node name=USB Laser Mouse pid=c069 usage_page=0x0001 usage_id=0x0001 matched=false
2026-09-01T13:27:12.302813Z DEBUG openlogi_device::inventory: HID++ candidate interfaces count=1
2026-09-01T13:27:12.305790Z DEBUG openlogi_hid::transport: opened HID++ channel name=M500 vid=046d
2026-09-01T13:27:12.310374Z DEBUG openlogi_device::inventory::probe: BT-direct / wired device recognised os_name=M500 name=M500
M500 (—, vid=046d pid=c069)
  └─ slot 255 ● M500 (mouse, wpid=?, battery=—)
          model_ids=[c069,0000,0000] ext=00 serial=— unit_id=00000000 transports=usb

macOS permissions (if applicable)

• OpenLogi has Accessibility permission (needed to remap buttons via the event tap).
• OpenLogi has Input Monitoring permission (needed for Bluetooth-direct devices and capture).