K-1 with box 16 checked

First timer here, trying to understand the K-1 with box 16 checked.  It seems that the IRS has given some direction on these but it isn't clear.  I won't actually get my K-3 until August and I see some people say that we don't need to file them this year.  My K-1 has nothing in boxes 1-5 and 21 is also blank.  It only has:

 

6a: 11

6b: 10

9a: 40

19 A: 83

20 A: 11

      AG: 51

 

Is the K-3 something that I need to worry about?  If not, do I say that box 16 isn't checked or should I say that it is checked and then enter 0's in the K-3 survey?

 

Thanks,

Brent