Turbotax IRA reporting error?

On my 1099-R Entries, the ones checked as IRA/Sep/Simple did not transfer to line 4a (IRA Distributions) on the 1040-SR form.  Our income was thus under reported to the IRS. We are faced with a penalty. How do we correct the entry for this type of income so it shows up in line 4a? Pensions where -IRA/Sep/Simple - was not checked appeared correctly in line 5a on that form.