Text Entry Box Accessibility in Captivate 9

I'm have some challenges regarding the tab order and how it works with text entry fields. It seems that no matter what I have on the slide (buttons, smart shapes, text captions), when I use a screen reader (Mac OS VoiceOver Utility) the text entry field is always read first.  I have re-ordered my tab order, as well as the items on my timeline - neither of which have changed the outcome.  Does anyone else have some experience regarding accesiblity screen readers interacting with tab order and text entry fields?