Retirement tax questions

I have a bit of a twist in my case and could really use some expertise.  

 

QDRO dispursement was paid in early 2019 however according to the dispursement company, funds were finalized on 12/31/18.  I never received the original 1099-R they claimed they mailed. This came to my attention upon calling the dispursement company to request the 1099-R while gathering statements to file my 2019 taxes. 

 

Q1. The dispursement came directly from my ex's 401K plan to me with Fed and State taxes withdrawn and the dispursement code on the 1099-R is 2, however I am under 59 1/2. Am I subject to the 10% early withdraw penalty?

Q2. If I'm not subject to the early withdraw penalty, is it necessary to even file the 1099-R?

Q3. If it is necessary, can I file it on my 2019 taxes or am I required to amend the 2018 taxes?

 

I appreciate any assistance I can get!!