Disabled state not working

Here's why it isn't working:

The only time the timeline on Next starts is when the slide starts. Lightboxes don't do anything that allows for the timeline of the slide that calls them to restart. So this trigger will be evaluated only when the slide starts.

Normally, there are few actions associated with a lightbox closing that allow for the firing of triggers, but it seems that changing a variable will do it. This is the only situation I know of where a slide can be aware of a variable change that is done on another slide. Usually only the slide that changes a variable can be aware of the change. It appears that in the case of a lightbox changing a variable, both slides are open, and can hear the variable change. So I learned something today.

Anyway, I would keep the "When timeline starts" trigger, so next is visible if the slide is revisited, and the three cases have been read.

I attached a trigger like this to each of the three variables, and it works now.