Retirement tax questions

@dmertz Thank you.  I can confirm that my Line 4b does show the taxable amount to be $286 (sorry I know I may caused some confusion here) as I can preview my 1040 on TurboTax before final filing.

 

But I am unable to preview my Form 8606... Is there a way to do this without finalizing the filing? 

 

Thanks for your help and hopefully you are staying safe during this crazy outbreak!