TAB order not working properly

Hi....having a weird thing happen.   I am using Custom buttons for all controls vs the built-in nav bar in Captivate.  I have ALL of my buttons on Slide 1 and have them set to view "Rest of Project".  This is great but of course, there are pages where we have to add other buttons and in some cases even hide the Next or Back buttons and use special Next/Back buttons with specific Advanced Actions and so on.  My question is....If I set the TAB order on slide 1 for all my buttons should those buttons TAB order overrule the TAB order of buttons on other slides?  I am seeing inconsistencies with this.  In a course I built last year it worked fine...now it is not.  What I expect to see in my TAb order is this: Next, Back, CC, Replay, Pause, Menu, Exit, and then any Popup button that I added to pages.  Instead, what I am seeing for a TAB order is this:  Next, then the popups, Back, CC, Replay, Pause, Menu, Exit.  I am using version number 11.1.1.676.  I have my TAB order set properly on Slide 1 as well as the TAB order of popups buttons on those specific slides.  Why would the TAB orders be getting mixed up???  Please help.  Thanks!