Yep, This test worked for me as well.

I think i might have the issue,

Since the document i was updating was quite large, i was only regenerating targeted sections of the document instead of the whole document.

Since I tried to Re-generate the Glossary Section ONLY, it did not pick up the references.
However, when i tried re-generating the Full Document – the glossary came up.

Sincere apologies for the trouble – guess i tried to cut a corner and failed .. :silly: