Hi folks, sorry to take so long to get back to you. First of all - thank you Benoit, my problem was resolved with your guidance. All I ended up having to do was shut everything down (log out of the ISY), close to browser (log out of Amazon), reboot (power down/up) Alexa, clear the cache and start everything up again... and it worked just as it should have in the first place.
I do think the issue was on the Amazon side and that logging out of the site, clearing the cache, etc did the trick.
Regards, Pat