What-if worksheet in 2018 TurboTax won't deduct $7K IRA contribution for 2019 test scenario

I'm using the What-If worksheet in CD version of 2018 TurboTax Deluxe to test some scenarios for Tax Year 2019. 

 

When I enter $7000 into the IRA Contributions Smart Worksheet in the What-If form for a 2019 test column, it will not adjust the line 32 IRA deduction to $7000 and consequently does not calculate the AGI correctly.  I presume other calculations such as taxable amount of SS, and itemized deductions will also be incorrect.  Am I doing something wrong?   Or does the 2018 What-If worksheet have a bug that won't allow the higher IRA contribution for 2019 even when I've checked the box to tell it to use 2019 tax rates?

 

As a similar question:  Unless I'm doing something wrong, I've also noticed that the What-If worksheet doesn't seem to be able to determine whether or not a Retirement Savings Contribution Credit should apply.  Is that a known limitation of the What-If worksheet and/or can it be made to calculate that credit?

 

Thank you!