Wife and I both did DoorDash--Inputting as separate businesses, but income from 1st being overwritten when inputting 2nd

We both did DoorDash in 2020, so I inputted these as separate businesses (with slightly different business names).  However, once I input the income from the 1099-NEC for my income then back out and try to input the income from my wife in her separate business, I find that the software has auto-filled the field with the income from my business. Then, when I change the income in this field to show my wife's income, I then find that the income from my business has been deleted! Do I need to consider us as a single business for this even though we got separate NEC-1099 forms? Or is it a software bug? (Shouldn't separate businesses be compartmentalized in terms of the inputted data?)