They are timed for the rest of the project. I have them set to either pause at the end of the slide or not to pause at all. Yes, it is a non-responsive project. So I am correct in using the HTML preview. That's what I thought. I just can't figure it out. I have cleared the cache, restarted, restarted my computer, etc. I have compared working modules to non-working modules, and I just don't see any difference. Been sweating over this for a couple of days and about to just clobber the screen with text in order to get this project done. Honestly, that wouldn't be too big of a deal as expectations are low for eLearning. But I want to improve on all of that...
A button can pause a slide at the end of its timeline, whatever its duration, but only when you have that button on the Master slide. That is not possible with buttons timed for the rest of the project because all slides will have a different duration.
Think you need to look more into my blogg posts about the Timeline.