I had multiple 1098 forms for the same property on my return, and followed the amending steps. I was owed $843. Right before I was able to submit, I owed $400... fraud?

I think something fishy is going on... this is ridiculous. I followed these steps after getting the email from TurboTax. https://ttlc.intuit.com/community/amend-tax-return/help/am-i-owed-a-larger-refund-if-i-had-multiple-...

Again, I was owed $843... that's what I saw in green. By the time I got to the end right before submission, I ACTUALLY owed $400... who else had this issue?