Unemployment, kiddie tax, covid, 8915-E and 2nd stimulus...

I have 3 children: 23, 19 and 17. All received unemployment compensation due to covid. My 23-year-old is working (not a college student). The 19-year-old is a full time college student, the 17-year-old a senior in HS. We had fed and state deducted from their unemployment checks all along the way. In completing their taxes, I input the 1099-G income, fed and state in the Unemployment section of Wages & Income, but for the later 2 kids, TurboTax "forces" a form 8615. If I uncheck "check if parent elects to report income" on my 19-year-old 8615, her fed due jumps from $149 to $1497. My high-schooler - from due $252 to due $2316. How is that if it's already claimed in their Unemployment section? It's like it's getting taxed twice. It won't let me file it in my return because the income wasn't "only from interest and dividends". PLUS - where is form 8915-E? We had to take early distributions when my wife was laid off to pay down recurring debt due to covid. AND we never got the second stimulus. Help!