@LoriC if you are on desktop go to Forms mode at find the "Qualified Dividends and Capital Gain Tax Worksheet" (not sure equivalent for TT Online but should be in the PDF with all forms and worksheets). This does the calcs for long term cap gains / qualified dividends.
TT core calcs are solid, tbh it's unlikely the qualified dividend is being taxed incorrectly. If you are looking at overall amount due to the Fed as you input the qualified dividends it may reflect a higher rate due to other effects of changing your AGI, also this amount on desktop includes any underpayment penalty, so if you see the total changing you need to look at the effects on your 1040 line by line to see what is driving it.
That said there have been some oddities with 1099s especially due to import so another thing to try is to delete the 1099 and re-input and see if you get the same outcome.
