iOS Ad Hoc Installation Missing Installing Alert

It has been a few years since I distributed an application Ad Hoc over-the-air. I seem to recall that after the user clicks OK to the "...would like to install..." alert, another alert comes up showing download/install progress.

I'm not getting that with a new distribution I created. When the user clicks OK, the alert goes away and seemingly nothing happens.

However, the app does download and install correctly.

Am I missing something or just remembering incorrectly?
iOS Ad Hoc Installation Missing Installing Alert
 
 
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