Why does some text wrap in a cell whereas other text hides until mouseover?

edited 12/09/19 in Smartsheet Basics

Please see screenshot. See how Child Advocates CASA is mousing over (but text is not expanding the size of the cell)? 

Now look across from Aloft Santa Clara and you will see long notes... I gave on 8/13/18 until... etc. 

These expanded the cell rather than hiding (as I prefer) until mouseover. 

Perhaps there is a character limit to mouseover? I cannot find a setting that lets me toggle between the options. 

Thank you.

Screen Shot 2018-08-16 at 5.33.37 PM.png