Video Input Sources not showing! Is there a Limit?

[Prof_Smoke]

I am using a Multiviewer to send 4 inputs to my Elgato HD 60 S. I made 4 new sources all set to the Elgato HD60S and Cropped them to each quarter of the screen. When I make all 4 sources visible the final one will not show(double clicking the source also shows no input) and if I make a different one of the sources not visible it will become visible. Anyone have a fix for this? I am using a lot of gifs, a webcam, a video for my background image, and these 4 sources so I thought maybe there is a maximum limit of videos and video sources that I could be hitting here. I searched but couldn’t find anyone with the same question, plz help!

 

[Tomasz Góral]

You need some bandwidth to receive data from Elgato.
Device who used more bandwidth need to be connected to USB bridge, one bridge can by connected to more like one socket. Check how many bridge you have.
E.g. HP Omen 17'' got only 3 bridge (for left and right side and one for Thunderbolt3). I can connect two FullHD signal to left and right side and in theory 8 device to TB3 or adapter to PCIE.