Retirement tax questions

This is a situation that is known and has been reported. 

Clear the amount entered.

Here is the work around for claiming the $300 Charity Deduction:

1. In TurboTax select Federal in the panel on the left
2. Select Deductions & Credits at the top of the page
3. Under Your Tax Breaks -
   1. Charitable Donations 
4. Click START to the right of Donations to Charity in 2020
5. Click YES
6. Click ADD next to Money
7. Type in the name of the charity that you donated to
8. Type the amount of the donation
9. Select Done with Donation
10. Select Done

Now the $300 will appear on Line 10B and in the Charitable Contributions screen

CARES Act $300 charitable deduction