---
title: "Known issues in Vicon Tracker"
canonical: "https://help.vicon.com/space/Tracker44/376307780/Known%20issues%20in%20Vicon%20Tracker"
format: markdown
---
The following issues are known to exist in the current release of Tracker 4:

> Macro (scroll-tablelayout)

| Issue | Workaround |
| --- | --- |
| After you have scaled a calibration and selected the resulting objects in the **Camera Calibration** panel (see [Scale calibration and set a fixed origin](https://help.vicon.com/space/Tracker44/376308740/Scale+calibration+and+set+a+fixed+origin) in the *Vicon Tracker User Guide*), a warning may be displayed that the wand and L-frame objects do not match, even when the scale of the wand and L-frame are the same. | None. The calibration and set origin operations are unaffected: this is a display issue only. |
| When setting up a custom calibration object, the last measurement entered in the the **Calibration Scaling** dialog is not applied and a message is displayed prompting you to enter or click outside the text box after adding the measurement. The object is saved as a non-scaled object; a corresponding scaled wand file is not saved and the calibration object does not contain a *Scale_X* annotation on the end. | In the  **Calibration Scaling** dialog, after you have finished entering your measurements ensure you press Enter or click outside the measurement text box before you click **Save**. |
| As the size of objects that you create increases, you may also need to increase the default **Object evaluation warning threshold** to properly identify object symmetry. | Increase the **Object evaluation warning threshold**, found in **Preferences** so that the warning is displayed (eg, for a 5x3m object, you could change the threshold from 3mm to 10mm to display the appropriate warning). |
| If you import graph settings from Tracker 4.1 into Tracker 4.2 or later, deselected graph components are set to enabled. | Deselect unwanted graph components and re-save the graph settings in Tracker. |
| If you want to export a CSV file from a capture, the **Export filename** field always defaults to the name of the review. This can cause issues if you export a CSV more than once from the same review.<br>When you successfully export a CSV file, the filename doesn't increment by 1. | Prior to saving, Tracker prompts you to confirm that you want to overwrite. |
| If a selected CSV export range contains a section where no data is present (for example, if you paused the live data shortly after the session started), instead of trimming the range to the part of the trace(s) that contains data, the output CSV file contains the whole selected range, resulting in NaN (Not a Number) entries. | Before export, pause the live data and select the required range. |
| When manually setting the review path, you cannot specify a network directory. | Download the data to a local directory and use that path for the review path |
| When reviewing a capture, you will not see any camera rays in the 3D View. | None |
| If you have a floating panel and dock another panel into that same floating window, you cannot dock both back into the original GUI. | Dock each panel individually. |
| Some settings in the Capture pane > Auto Capture section cannot be 'set to default' individually. | Use Default Parameters > Macro (inline-media-image)

 at the top of panel, but note that this resets all parameters in the panel. |
| View filters in the Objects view do not persist. | None |
| If any filename matches the current Capture Name specified in the Capture panel, the Start Capture button is unavailable. | Remove the file or rename the capture. |
| In Graph Plots, channels relating to the centroid count (Centroid Count and System Centroid count) are not displayed in Review mode. | None |
| If you select a genlock standard (eg, PAL: 25Hz) in System Settings, the frame rate changes to the nearest multiple of that standard even if the parameter is not enabled. | Set genlock standard to None. |
| Occasionally, the Preferences dialog may not open properly | Re-launch the app |