ZED Camera stream not opening from isaacSIM port

I am trying to view ZED Camera output from a camera in IsaacSIM, but the output is not showing in DepthViewer or in Explorer. I was able to successfully install zed SDK and the zed extension in IsaacSIM, as well as create an action graph linked to the ZED camera. I am using a Ubuntu 22.04 with IsaacSim 5.1.

When I open ZED_Depth_Viewer or ZED_Explorer, I use streaming input with IP address 127.0.0.1 and Port 30000, but it doesn’t open. Below shows output from terminal running IsaacSIM as well as where I tried to open the ZED viewers. What am I missing here?

Hello,

Thank you for reaching out !

Have you been able to follow this tutorial ? https://www.stereolabs.com/docs/isaac-sim

Best,

Stereolabs Support

Yes, I am on the last part. I am unable to view the output in Depth Viewer, but I set up the camera and action graphs.

1 Like

I have also been running into the same issue!

Running Isaac Sim 5.1.

I reinstalled isaamSIM 5 by building from source, and I made a bit of progress but now the camera closes immediately after opening and says the port is busy (See video). I have not been able to keep it open in ZED_Depth_Viewer or ZED_Explorer. I have tried different ports but I get the same error regardless. How can I get it to stay open? Terminal output is also shown from when I run ZED_Explorer

ZED Isaac Sim video

** [SV0] Hardware compression (NVENC) available **
[ZED][Streaming] Switching to SHM-boost backend input
[Streaming] Warning : receiving port 30002 is not available (already used)... switching to port 30004. Retrying...
[Streaming] Backward compatibility required.
QObject::setParent: Cannot set parent, new parent is in a different thread.

In the IsaacSIM window, I see the following output:

[Port: 30002] Constructed annotator for stereo camera.
2026-03-23T15:15:44Z [3,984,218ms] [Warning] [sl.sensor.camera.plugin] Initializing streamer with ID 0 on port 30002
YUV encoding enabled, overriding RGB/BGR.
[Streaming] Use Transport layer mode : 2
[Streaming] Use SHM-Boost IPC backend

This is the output when I try ZED_Depth_Viewer:

[2026-03-23 11:17:39 UTC][ZED][INFO] Logging level INFO
[ZED][Streaming] Switching to SHM-boost backend input
[Streaming] Warning : receiving port 30002 is not available (already used)... switching to port 30004. Retrying...
[Streaming] Backward compatibility required.
[2026-03-23 11:17:39 UTC][ZED][INFO] [Init]  Serial Number: S/N 45626933
[2026-03-23 11:17:39 UTC][ZED][WARNING] Simulated ZED camera used ZED X
[2026-03-23 11:17:39 UTC][ZED][WARNING] [Init]  Invalid calibration file format. On Linux, run export LC_ALL="C" and restart your application.
[2026-03-23 11:17:39 UTC][ZED][WARNING] Self Calibration Disabled.
[2026-03-23 11:17:39 UTC][ZED][INFO] [Init]  Depth mode selected: NEURAL. Ensure this mode matches your application's performance and accuracy requirements. See https://www.stereolabs.com/docs/depth-sensing/depth-modes for help

@scruz10FAU have you solved this issue?

No, I am still unable to view the camera output in ZED Explorer or ZED Depth Viewer. It shows up briefly sometimes in ZED Explorer but then immediately crashes.