Retirement tax questions

It doesn't work for me.  I have  IRA distributions from different IRAs and a pension with total pension different from taxable amount.  According to IRA instructions, I need to put my multiple distributions as well as my total pension in 4a and all that shows up is the pension info from BOX 1 of the 1099.   4b shows taxable IRA distributions and taxable pension amount correctly but 4a is not right