Not really a storyline issue, but kinda. VoiceOver on Mac

I've been testing my SL360 courses, using NVDA screen reader on Windows for a while. Now I have access to a Mac and did some research to learn that most people use the built-in screen reader, VoiceOver. My problem is I can not get VoiceOver to read a single thing in any of my courses. All it keeps saying is "You are currently on an image" I've tried googling answers and every one of them has not resolved my issue.

NVDA has no problem reading text, or any alt-text. Can someone help me out?