① Check for a Gray Glove Icon

• ✅ Open the SteamVR main interface.

• Check whether a “gray glove icon” appears (this indicates that SteamVR recognizes the glove device, but it has not been assigned correctly).

② If There is a Gray Icon

Follow the steps based on your tracker type:

➤ Using a Lighthouse tracking system (e.g., Tundra Tracker / VIVE Tracker):

1. Go to: SteamVR → Settings → Controllers → Manage Trackers.

2. Assign each tracker to Left Hand / Right Hand / Held in Hand.

3. After assigning, restart SteamVR and check if the icon returns to normal.

➤ Using standalone headset tracking (e.g., Quest / PICO with controllers as trackers):

1. Find the UDCAP software shortcut → Right-click → “Open file location”.

2. Go to the udcap-bin-win64 folder.

3. Right-click ucap_overlay.exe → Run as Administrator.

4. Check if the glove icon is detected.

③ If There is No Gray Icon

1. Check whether UDCAP plugin is enabled in SteamVR:

   • Go to: SteamVR → Settings → Startup/Shutdown → Add-ons.

   • Check if udcap plugin is listed and enabled.

④ If UDCAP Plugin is Missing

1. Restart the UDCAP software.

2. Check if the plugin path is correctly set:

   • Locate the UDCAP installation directory (the folder containing ucap).

   • Copy the ucap folder to: SteamVR installation directory → drivers folder (e.g., C:\Program Files (x86)\Steam\steamapps\common\SteamVR\drivers).

3. Restart both UDCAP software and SteamVR.

⑤ If the Add-on Exists but Gloves Still Don’t Show Up

1. Go to: SteamVR → Settings → Startup/Shutdown → Add-ons.

2. Disable any other add-ons of the same type (e.g., other hand tracking or skeletal driver plugins).

3. Add-on conflicts may cause detection failures.

✅ Final Recommendation

• Always restart SteamVR and UDCAP software after making any changes.

• If the problem persists, record your steps and software versions, and contact technical support.