Simple problem?

Hello there,
Could anybody please tell why the output from the studio is being fed or ‘bleeding’ back into the studio input?
This is making separation in audio recording impossible.
I’m using Cubase pro 10.5 and the Mac OS Catalina.

Because you are obviously doing something wrong - maybe a loopback…
To get more useful info, provide more useful info!

Nothing bleeding here.

What do you mean when you talk about “the studio input”, and what do you mean when you talk about “output from the studio”…

Cheers, Ernst