You might need to give some other details of the situation for anyone to be able to try and replicate your situation.

"tax of $1,744 on line 14 which is $1,100" doesnt make much sense on its own.

The last I saw, the Kiddie Tax was screwed up and you need to open with some worksheet about Schedule D (maybe Capital Gains or Qualified Dividends, even if that does NOT apply to the kid) and the calculation magically fixes itself.