Justified text wrap error CC vs CS6

I have a client that requires text files be set up in CS6. I have set up columns of justified text in CS6 but I have several words that are flowing outside the text box. When I open the file in CC it appears correctly.

I tried saving some test files from CC in CS6 format but still no go. Attached are images of the issue. I really hate to use forced line breaks. Is there some other setting that I'm not aware of that could help?

I much prefer to use InDesign for text formatting but all pharmaceutical packaging companies pretty much require the use of Illustrator and most are still using CS6 or CS5 so I'm stuck.  

In CS6

In CC

Thank you!