Logic Pro X producing tinny sounds when trying to record using Scarlett Focusrite

I’ve been using a Scarlett Focusrite interface for quite some time to record in Logic Pro X.

However, lately when I plug a guitar or bass in and try to record in Logic Pro, I barely hear the instrument whatsoever. When I do hear it, it’s very muffled and tinny.

Thinking it was a problem with the interface itself, I bought another. The new one also has the same issue.

Now, I’ve probably accidentally changed a setting somewhere that is making it sound like this, but I can’t for the life of me figure out what is happening.

it should be noted that the indicator lights on the Focusrite seem to show that it’s working correctly.