I have several text fields in my data. All show up as text boxes when I go to edit a point EXCEPT for the one text field that I am using for symbology of the points. When I edit that text field, it shows up like it is a "domain" or "subtype" and not a text field.
I deleted the text field we were using for symbology and created a new field that uses a domain and the problems on the IOS device seem to have been rectified. I don't know why but using that text field weirded out Collector on IOS.