Background Check GPA Dropped

I got a call from HR last week about how they noticed during the background check that my GPA had dropped by a large amount due to me being a transfer student and not having that many units.

I explained the situation, to which they said that it makes sense since the courses that I took were very difficult and to keep them posted on how my next academic term goes.

Am I screwed or do I just have to do well this semester? Do you guys see any chance of my offer being rescinded?