I'm wondering why I am getting a different refund after updating my wife's ITIN? Initially I used a made-up SSN and the refund was 6K, now it has reduced to 2K

Brief Background: I applied for an ITIN for my wife and my daughter this year. My daughter's application was rejected while my wife's was successful. Now, I would like to resubmit a w-7 for my daughter and I just updated my spouse's information with the new ITIN in Turbo Tax. Previously I just used a made-up SSN so that I can I get my tax return printed. But, now after updating just the personal information with the new ITIN, I'm surprised that the federal refund is reducing from 6k to 2k. Any idea what could be happening or causing this? Looking forward to hearing you response