1040X to add Sched C for indiv (dependent). Resulting 1040X did not pick up correct orig data, nor compute correct AGI, I had to override to get correct 1040X

[coppens1]

I did a 1040X on a return to add a Schedule C for an individual who was a dependent.  The resulting 1040X did not pick up the correct original standard deduction, which was an adjusted standard deduction because the taxpayer was a dependent.  It did not compute the original correct taxable income which was zero.  It did not compute the original overpayment on the return.   I had to override the 1040X in several places because it was wrong.  Has anyone else had this problem?

[BMcCalpin]

Did you add the Schedule C to your dependent's original 1040 return or to your return?

Also, did you do this using the Online product, using your dependent's account or your account?

Sorry, this is not clear to me...

[coppens1]

I added the Schedule C to the 1040X, not the original return.  The income was correct on Column 1 of 1040X, but not the deductions, nor the tax refund.

I am not an amateur.  I have probably done 1000 or more returns using turbotax over the years.