Multi-camera says camera not detected

i have 2 zed2 cameras connected to usb3 hub when i connect them both and run the multi-camera sample

it says that the second camera is not connected but when i disconnect the first one it works

Hi @fr-gr
you should not connect two ZEDs to the same USB3 hub. You can experience bandwidth and power issues.
You can try with an externally powered hub if the used resolution is not too high.

i am using a different hub for each camera and i lowered the resolution to VGA and still same thing happens.

Does each camera work correctly without the USB3 hub?

Can you provide a scheme of the connections?