Read Out Loud not following Reading Order

Have text and images (with alt text) displayed in Order panel and on page in correct reading order. However, when I ask Acrobat to READ OUT LOUD, it consistently reads the last alt tag image and then goes back to the top to read - and then skips other text on the screen - and on to Page 2. I have gone to Preferences and changed the Reading Order Options to every option and combination possible - saving the file as a different name each time to see if it changes the order. It does not. PLEASE HELP! I need to provide this document to a school system for a child.