When you amend your return you will be dropping one child from being your dependent so, yes, any stimulus for that child given to you on your original return will be deducted. Note that since the child your husband will claim lives with you, you can still get earned income credit and child care credit for that child if otherwise qualified even though that child is not claimed as your dependent. You should give your husband a signed form 8332 to allow him to claim a child who doesn’t live with him.
