kaythepix

If NVC is not satisfied, they will tell you.  If they are, you will be DQ.  Do not upload any updates until after you have an interview date.  If possible, upload an updated affidavit with the complete 2024 tax return and a current pay stub.  Tax returns are about the past.  If he has a W2, he's "employed".  Evidence of current income for an employee, is a pay stub, not a tax return.  The tax return is required, yes, but not as evidence of current income.

Honestly it would be faster to go back to Japan and get it done there. In Kanagawa prefecture the police certificate takes a week. Husband just picked up his on Friday and that was our last step to upload so now we are waiting for DQ
 
If you were trying to adjust while on ESTA/ a visit, that would cause some raised eyebrows anyways which would be a risk. Especially bringing it for a 90-day visa would probably set off alarm bells

Right. But joint sponsor doesn't need to list US citizen children of the primary sponsor because they don't need sponsorships.
Op, you'll fill your own I864 listing your children as part of your family but make sure you are not listing them as being sponsored; just as part of family size. But to your original question, your joint sponsor doesn't have to list your kids, only your husband as who he is sponsoring.