Why is the plugin not working with Gravity Forms?

I have just now purchased the Pro version of File Renaming on Upload (1.3.2).  The plugin works as expected when i am adding an image from the Posts window, but it is not working for files being attached via Gravity Forms.   (yes, i checked the box on the Compatibility tab)

I had purchased this plug in last December (version 1.1.9)  for a different web site (though it was the exact same type of project), same version of Gravity Forms, same theme, same other plug-ins, and it works just fine.    (one difference – the WP site that works is on 5.7.5 and the WP site that isn’t working is 5.9)

I can’t for the life of me figure out what I am missing in this install – I’ve reviewed the settings over and over.   Can you point me to what I am likely missing – or – can I get another copy of version 1.1.9 Pro to try and see if it is a version issue?

thank you

J A McRae

(PS – unrelated..  the URLs on the Compatibility tab both go to BuddyBoss. even the one that ought to be pointing to gravity forms)