Ok, I have found a work around for this issue. I happen to have an older iPad with a previous version of the Alexa app installed. Luckily for me, I currently had auto updating of apps turned off. When I launch the older version, “Scenes” is still available. I can confirm that I am able to delete duplicate, as well as any unused scenes that are not in use any longer. However, when I launch discovery Alexa only discovered a single scene via the portal in which I have many. I am going to due some more testing and will report my findings ASAP.
ps. I am the original poster of this topic. I was logged in through my portal credentials when posting this follow up.