Big feedback from U22mkii on Pro Tools

Hi,

Gone back to using Pro Tools for the first time in a few weeks. Changed absolutely nothing from the last time i was recording, suddenly when I input monitor or record arm i get huge feedback. It can happen when nothing is plugged into the inputs. Anyone know whats happening? I did notice that having my guitar plugged into input 2 but actually selecting input 1 to record also triggers it. It’s as if it’s trying to let both inputs record into the same track, possibly causing this feedback?

I have changed nothing from the last time i used it, playback engine still says Yamaha Steinberg etc.
Im on Windows 10 and latest Pro Tools.

Cheers

Found the problem.

Had to untick “enable loopback” in Setup>hardware>launch hardware app.

no idea why it was ticked in the first place

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