Your return will (most likely) not be held up or even delayed. It's not the kind of thing the IRS computers will catch.
You can (and should) wait until you get your refund before filing an amended tax return, if needed. Even though your input numbers may be different, there's a chance that the output on form 8863, will not change. Not all you payments are used in calculating the education credit. An amended return may not be needed.
