Distorted Track after importing

Hi All,

I’m very new to Cubase and to this board so help is appreciated (its probably something simple)

All has been going well until today when I imported a number of .wav tracks into a session. I then went to import one more but before i ticked a box in a pop up which had appeared each time i imported a track, I cant remember what it said exactly but since the box was ticked it hasnt appeared again. Something along the line of “Convert”? Anyway this was a complete mistake and now when i import the track it comes out really distorted. I’ve not had this problem until now so i’d like to undo what i’ve done.

Can anyone advise how i “untick” the box? I’ve tried deleting preferences but the tracks still load distorted.