Deductions & credits

What the problem is, I changed from head of household to single and removed him from the first part of the forms because I didn't think I could claim him. When I added him as a Child Tax Credit I didn't realize it was also a Dependent claim.  TT should have flagged that I should have changed back to Head of Household with the addition of the dependent.  It also automatically added his SS # so it had his info somewhere.  It may seem like I should have known, but if I were a tax expert, I wouldn't need turbo tax.

He will file with Yes someone else could claim him, but now I need to refile to decrease how much I owe by several thousands of dollars.  

I have used TT for many many years and each year I find some small issue but this year the issues are vast.  I also got the W2c message that is on another chat and is causing anxiety for a lot of people.