Were the SSNs issued before the due date of the tax return?

What EXACTLY is the adjusted amount?  Is that the refund?  Or is it ONLY the Child Tax Credit?

On Form 8812, is the box checked for line 13?

$5800 could be $1400 x 2 + $3000

My GUESS is that is the Recovery Rebate for the adult plus one kid, plus the CTC for one kid.  And for some reason the other two kids were disallowed.  Again, that is ONLY a guess.