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About  >  Errors & Warnings

See below an overview of errors and messages that can be generated by Lumi

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Lumi Web Application

  1. "Error occurred"

    • Cause:​

      • User unauthorized​

      • Asset not found

      • Another user updated this item

    • Actions​

      • Refresh the Lumi Web Application and try again​

      • Sign out and sign in again

      • Contact Augmedit B.V. support by using the 'Report Feedback' button in the Lumi Web Application, email support@augmedit.com, or by phone

  2. "Scan upload failed"​​

    • Cause: The upload of the DICOM scan to Lumi.cloud failed​

    • Actions:

      • Refresh the Lumi Web Application and try again​

      • Contact Augmedit B.V. support by using the 'Report Feedback' button in the Lumi Web Application, email support@augmedit.com, or by phone

  3. "3D Model upload failed"​​

    • Cause: The upload of the 3D Model to Lumi.cloud failed​

    • Actions: 

      • Refresh the Lumi Web Application and try again​

      • Contact Augmedit B.V. Support by using the 'Report Feedback' button in the Lumi Web Application, email support@augmedit.com, or by phone

  4. "You have made unsaved changes to the hologram"

    • Cause: The user tries to close the 3D Patient with unsaved changes​

    • Actions: Choose one of the following options: Save changes / Discard changes / Cancel​

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Lumi HL2 Application

  1. "Your battery level is xx%"

    • Cause: The battery leven of the XR glasses is below xx%​

    • Actions: Charge the XR glasses until a higher battery level is reached. When working with the EVD Workflow, charge your battery until >80% before you proceed

  2. "You have unsaved changes, are you sure you want to close the hologram?"​

    • Cause: The user tries to close the 3D Patient with unsaved changes​

    • Actions: Choose one of the following options: Cancel / Save and close / Close

  3. "A newer version of the Lumi HL2 App is available, install it via the Microsoft Store"​

    • Cause: The user has an outdated version of the Lumi HL2 Application installed and should update it to the newest version in the Microsoft Store on the HL2​

    • Actions: Go to the Microsoft Store on your HL2, click on 'Installed Apps', search for 'Augmedit Lumi' and click 'Update'

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EVD Workflow

  1. "Number of patient and 3D Patient landmarks are displayed in red"

    • Cause: Number of patient and 3D Patient landmarks are displayed in red

    • Actions: Remove or add patient or 3D Patient landmarks​​​

  2. "Outline of tracking tool is displayed in red"​

    • Cause: The tracking tools is tracked at a suboptimal rotation or distance​

    • Actions: Move your head closer and more straight to the tracking tool to ensure tracking from an optimal position

  3. "Track the reference marker / pointer tool first"

    • Cause: One of the trackers is not tracked completely​

    • Actions: Move your head to track both tracking tools properly

  4. "EVD Workflow cannot be started because of missing elements"​

    • Cause: The 3D Patient misses a CT scan, the skin, skull, or ventricles and therefore the EVD workflow cannot be started​

    • Actions: Ensure your 3D Patient contains at least a CT scan, the skin, skull, and ventricles

  5. "Environment tracking lost, please wait…"

    • Cause: HoloLens 2 has lost tracking of environment, marker tracking not possible​

    • Actions: Gently look around the room and wait till the warning “Environment tracking is stable” appears

  6. "Environment tracking is stable"​

    • Cause: Environment tracking of HoloLens 2 is restored, marker tracking is possible​

    • Actions: Check if marker tracking is accurately restored, continue EVD workflow

  7. ​"User not detected, please wait…"​

    • ​Cause: User has flipped up HoloLens 2 visor or has not calibrated eye tracking. Marker tracking is not allowed​​

    • Actions: Flip down HoloLens 2 visor or calibrate your eyes (Settings > System > Calibration)

  8. "User detected again"

    • Cause: User detected after being absent​

    • Actions: Check if marker tracking is accurately restored, continue EVD workflow

  9. "Performance (FPS) too low"

    • ​Cause: Performance of HoloLens 2 is too low for reliable marker tracking. The hologram might be too complex (heavy) or the user is doing too much too complex tasks simultaneously

    • Actions: Simplify your hologram or stop running complex tasks (for example drawing)

  10. "FPS became acceptable again"​

    • Cause: Performance of HoloLens 2 returned to acceptable level after having dipped below acceptable level​

    • Actions: Check if marker tracking is accurately restored, continue EVD Workflow

  11. "The system temporarily lost its tracking reference. If recovery is not possible, the application will close and must be restarted. Please note that unsaved changes may be lost."​

    • Cause: Environment tracking was lost during marker tracking. This is a known condition in which the app can become unstable. If the user chooses to continue, the app might crash and unsaved changes might be lost."​

    • Actions: Gently look around the room and see if environment tracking restores, otherwise close the hologram and EVD Workflow.

EU User Guide Lumi v1.2

Augmedit B.V.

©2026 by Augmedit B.V.

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