Severe feedback distortion using loopback

Hello, I’ve just upgraded to Audacity 3.4.2 and when I try to do a loopback recording of sound on my pc, it records nothing but intense feedback. I’ve tried the fixes i’ve seen online including "Ensure that “Software Playthrough” is off (not selected) in “Transport menu > Transport Options”. but I don’t see that option anywhere under the transport menu. I have an example mp3 but don’t see an option here to attach it.

any thought would be greatly appreciated

The “name” has been changed -

Edit → Preferences → Recording → ‘Audible Input Monitoring’

That should be off because yes, if you are monitoring what you’re recording and recording what you’re monitoring, that’s a feedback loop.

Excellent! thanks for the quick answer, that fixed it completely!