Recording cursor not moving?

I’m using windows 10 and audacity 2.3.2.
I have two focusrite scarlett audio interfaces (I’m trying to sell one but I’m trying to make sure it works.)
On my newer one, my microphone records fine. But on my older one (they’re both 2nd generation), when I try to record, the recording cursor doesn’t move at all and nothing happens.
I’ve already tried restarting my computer, and checking my privacy settings.
Any idea what could be causing this? The interface I’m having issues with turns on and lights up and everything but the audacity recording isn’t working. The audio interface isn’t that old but it’s possible it’s the interface’s fault.