If you are in Review, you may be shown just portions of a form to display whatever entry the program is asking about.
It is sometimes easier to go back to the interview for the form in question to complete any missing entries. You might go back to Underpayment Penalties in Other Tax Situations and complete the interview again.
If you want to see the Form 2210 that TurboTax has completed from your entries, go to Forms mode (by clicking Forms on top bar menu) if you are using a Desktop version, or in Online, you can preview your return forms before filing . See here for details.