Hello....my first attempt to use this forum. Can anyone help me?

I am preparing a mail merge and successfully set up my envelope address box for the delivery address. It has 6 lines, the last 3 lines being address lines. When I preview my address box, it seems lines 5 and 6 print on the same line. I cannot figure out what I did wrong or why it would not follow my field matches and separate those 2 lines on the envelope.

Any insight or suggestions would be appreciated......Rob