I too had this issue and did not feel like the below advice to add it in the "Less Common Income" section made sense (since specific 1099-NEC is not able to be added there). SOOOO, I continued investigating and found that 1099-NEC info can be added under "Other Common Income" also in the Wages & Income section. When entering it here, you are given an option to select Hobby Income. Hope this helps!!! 🙂