Show/Hide works as normal in .swf but not in html5
We are using Captivate 9 for this project.
On a slide, a particular micro nav icon is hidden until a particular sequence has been viewed. When the viewer clicks a micronav icon, the icon advanced action shown should toggle from the default "Not visible in Output" to Show. In the published .swf file, it performs as expected.

When published as an HTML5 output, the Show is ignored but the expression executes as it should.
Any ideas on what is causing this?
