[BUG REPORT]: Unable to access camera after configuration

[alex-isen]

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• I have searched the project's issues and found no similar bug report.

System information

Current setup :
Raspberry pi 4
DWE OS v0.6.1
4 x exploreHD camera

Describe the bug

Hello
I was trying to configure 4 x exploreHD camera on the DWE OS.
At first boot, all cameras are visible :

But if I try to configure all camera with a 10FPS and a correct endpoint :

After the next reboot, most of cameras have disapeared :

And in the log file I get this error :

2026-05-26 20:27:14,975 - DEBUG - [dwe_os_2.cameras.Device] - device.py:606 - set_pu() - Error setting control value: [Errno 13] Permission denied 2026-05-26 20:27:14,977 - DEBUG - [dwe_os_2.cameras.Device] - device.py:606 - set_pu() - Error setting control value: [Errno 13] Permission denied

It's impossible to revert back the parameters.
The only way I have found was to delete the device_settings.json in the /opt/DWE_OS_2 folder

To Reproduce

follow the description.

Expected behavior

Allow the possibility to configure the camera as needed.
And/or add a button to reset all the settings

Additional information

No response

[brandonhs]

Hi @alex-isen

Thank you for opening this issue, and apologies for the delay! This is certainly an unexpected behavior. The error from the logs that you mentioned is likely unrelated to the core problem (it's actually expected due to some parameters being disabled when others are enabled). Do you have any more detailed logs you can provide? This could be a power related issue, so make sure you are powering the cameras via an external power supply. Please see https://docs.dwe.ai/hardware/interface-modules/specs/7-port-camera-hub#power-configuration for more details on this.

I would also recommend to try updating to the latest version v0.6.1.1