Not sure what you are seeing where ... never heard of that before. What I do know is if you really did transmit the return in step 3 of the FILE tab, and the return is PENDING IRS acceptance, you CANNOT make any changes to the return of any kind.
Contact TurboTax support and speak directly with a TurboTax support agent concerning this situation.
See this TurboTax support FAQ for a contact link and hours of operation -https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number