2023 amending return

Clients have AGI of $198,000. Two children under age 13 where one had daycare expense of $2,100. Parents collected $4,200 in childcare benefits (Box 10 on W-2).

Form 2441 Part II is not calculating lines 3-11 to determine limitations of credit.

Part III reflects their taxable benefits $2,100 ($4200 - $2100). Benefits rec'd less the childcare expenses.

Lines 27- 31 are not populating either.

Nothing is feeding to Sch 3 to give them any credit; I figure $2100*.2 = $420 should appear.

They do receive credit on 8812 for $4000.

working mostly with retirees, I don't work with these forms all too often & not sure what I'm missing.