Well, the new app has finally made an appearance. When opening the Medallion app it prompts you to download the new app. They are 2 separate apps for now. The first log in immediately timed out and required a second log in. So far it looks like it crossed over all information from old app.
So I had DH pull up the app on his phone, and he can use the app without issue and sees our voyage. I still cannot select dining reservations. But there is definitely an issue with my id since I cannot even see the journey.