electronic filing the next year when IRS has processed previous year's amended return?

I filed an amended return with the IRS in 2019 because a stock broker updated his 1099 during March.  The IRS web site acknowledges they have received the amended return and 'apologize' for not having processed it.  Usually when you file electronically - TurboTax needs your previous year's AGI which is clearly different for the return I first filed and the Amended return.  Which one should I use or should I not file electronically.  Likewise this holds up the state filing too.  Thanks for any help - Ron