Yes I have figured out why but this is .... be positive in honor of Milford 
Step 1: enter "anger" in Topic Guide
Step 2: click open Sermon Starter Guide on Anger

Step 3: as nothing happens since all sections are closed, click to expand a section

Everything works as expected.
===========================================================================
Close everything and start fresh
Step 1: enter "anger" in Topic Guide
Step 2: click open Sermon Starter Guide on Anger

Step 3: as nothing happens since all sections are closed, click on Go arrow beside "Anger"

Funny thing - the topic changed on me. The reason - "anger" is replaced by the first entry in the drop down menu ... even though I never opened the menu nor put focus in the entry box. SSG simply decided that the TG didn't know what it wanted and overrode it. Aaargh ....
