Off the top of my head, there are a few differences in your example. You're not using "Spouse," and there is no value on line 1c (and, therefore, no value on line 7). (Is this an inherited RMD?) My guess is my example requires you to have a 1099-R that has a taxable amount on line 2b but checked "Taxable amount not determined," so you have to enter 0 for 2b (because of the aforementioned CARES Act making RMDs not required).
