# Calibrate overlay freezes

Source: https://forum.modalai.com/topic/4141/calibrate-overlay-freezes
Category: ESCs, Sensors and Accessories (https://forum.modalai.com/category/15/escs-sensors-and-accessories)
Tags: image-sensor
Posted: 2025-02-03 17:56:42 UTC by Kessie
Replies: 2 · Views: 613

## Kessie · 2025-02-03 17:56:42 UTC

I’m trying to calibrate a tracking camera of the Starling 2 max.
When I start voxl-calibrate-camera a new pipe is created but it freezes.
What could be the reason?
I’ve stopped all the services besides the camera server to make sure that it isn’t a cpu problem but to no avail

## Reply by Alex Kushleyev (ModalAI staff) · 2025-02-03 19:56:14 UTC

Hi @Kessie , this may be related to an issue mentioned in the following thread. please take a look

https://forum.modalai.com/topic/4139/voxl-portal-wont-display-live-camera-feeds-after-sdk-1-4-0-upgrade

## Reply by Kessie · 2025-02-03 20:16:05 UTC (in reply to Alex Kushleyev)

@Alex-Kushleyev After updating voxl-portal, it indeed worked.
It is peculiar, because I didn't notice the tracking camera freezing before, only the calibration overlay.
Thanks for the quick support!