I have RSUs that vested and my employer sold a portion to cover taxes. I sold the remaining shares. TurboTax is doubling the number reported on my W-2. How do I fix this?

The Employee Stock Plan Results page in TurboTax shows exactly double the RSU amount reported in box 14 of my W-2. I received 2 separate 1099-B statements for 2018 - one has the sell-to-cover transactions and the other has my sales of the retained shares. I followed the "guide me" approach in TT and entered all the details from the broker statements. I don't understand why TT is doubling the amount or how to fix it.