I filed an amended return that showed a small amount due (meaning a slight reduction in my refund). But the IRS has not provided any refund? File 2nd amended return?

I filed my taxes on time and was due a refund. Then, after filing, I noticed an error in my reporting of Roth IRA contributions. I filed an amended return right away. The amended return showed a small amount due (meaning a slight reduction in my refund). But the IRS has not provided any refund. Seeking advice on how to proceed. Should I make a 2nd amended return?