Alt Text problems

I've been doing that exact thing since I started using Storyline with great success. However, just recently, my changes aren't sticking. I have instructional bars across the bottom of my screens (Click This, Click That, etc.) and I usually update the alt text as I'm developing. Build one bar on one slide, copy and paste to the next then edit the alt text. But it's not working now. All of my instructional bars have kept the alt text from the very first one. I've tried right clicking > Accessibility and editing; selecting the bar > States > Edit States (even though there's only one state) > right click > accessibility. And keep getting the same result(s). I've also tried shutting everything down and rebooting to no avail.