I did a cash out refinance in 2019. I received  a 1098 from the Mortg. lender I paid off. It included less than $200 of MIP. I received a 2nd 1098 from the lender who acquired my loan, contains  zero MIP.  Both have have amounts in Box 1 (interest), origination dates, original mtg. principal and both are Copy B versions. 

I received a 3rd 1098 from the mortgage company that facilitated the refi. This one contains less than $50 in actual interest paid, has no original mtg. principal, has no origination date but it has a large amount of MIP. I've noticed that this one states that it is a a Copy A version and is not for the buyer but instead the IRS Service Center and should be mailed with form 1096. 

I entered all three as-is, and ran into a caution in the error check routine, which prompts me to fill in the original principal amount, which is nowhere to be found on the form. 

So, if I delete the 3rd 1098 i entered, my refund does go down  a bit, a little over a $100, which must be due to last minute MIP deduction legislation that ive read about, recognizing my MIP as eligible for deduction. That being said, I'm concerned about the caution TT gives me and wonder if my return will be rejected or worse, audited. If i run error check without the 3rd one, i get zero errors. Not sure if i should submit taxes as-is and ignore the error correction notice or not? Help!

*Why would they send to me the Copy A version? DO they expect me to manually send that form to the IRS? Aren't they supposed to? Seems like if i want to try to deduct MIP  I won't be able to file online as-is. I'm lost on next steps.