I have a text button set at the beginning of a presentation which is set to
"start" them module. The button is set to the following options --

Display for: rest of slide
Appear after: 0.0 seconds
Pause after: 0.5 seconds
Show hand mouse cursor...

The button itself is set to go to next slide on success and to allow user
infinite attempts with no shortcut key. There are no quizzes or audio attached
to the button.

All the elements (text and simple graphics) are set to "display for rest of
slide" with everything (including the button) starting at 0.0 and 5 seconds in
length on the timeline.

Why is it not pausing?