@CalebD wrote:
We spent the same number of days with the kids
You didn't say when you stopped living together. If you and the mother did not live together for the entire year, the kids could not have spent exactly the same number of nights with each of you, because 2023 had an odd number of days. The kids had to have spent at least one night more with either you or the mother. Yes, the IRS is that picky.
