TT 2021 Online Form 8911 (Alternative Fuel Refueling Property Credit) Not Calculating Correctly

Using TurboTax 2021 Online.  I entered $1744 for the purchase and installation of an EVSE and TurboTax only credits me $240 (~14%), but the credit should be $523 (30%).  I have plenty of remaining Federal Tax Liability (>$20k).