Capture Devices

[CurlyUnconscious]

Hi! I've been handling obs, various scenes, transparent videos, etc. but recently I wanted to have a third capture device, 2 cameras and a capturer that receives a signal from a second computer, however, the screen appears black. I thought it was the capturer but the same thing happens to me if I add a third camera.
I removed all the capture devices and just added the capturer and it worked! but adding more than two capture devices, the third device the image came out on a black screen.
Someone could support me with this problem please :(

 

[pepox]

Before opening OBS, Are you able to see the 3 cam on VLC ?
I had a similar issue and finally it was the capture cards driver, they where same model and once installed I saw the 3 drivers with same name, they worked two, but not the third connected, it doesn't worry the order. I replaced one of them buying another brand cheap HDMI capture card (another driver name in windows) and i got run the 3 cam.
I have to say that I am not expert, it was just my experience!

 

[CurlyUnconscious]

I can see all the devices with vlc but when I try to enter the devices to obs, it only lets me add two and the third one sends me the black screen.