Which account are you using for login? Can you check by clicking on the question mark in upper right corner of opened application?
This seems like you are logged in using your account (as there is no license under your Epic Games account) and the project is opened in the PPI mode.
To use the academic licenses from first post you need to be logged in RealityCapture using your academy account, not your personal one, as there are not any licenses.
Have you followed this tutorial: I have several ENT licenses. How can I easily share them with my team/students for offline activation?, you can try the second method.
But as the showed project is created as PPI project, it won’t be possible to open in in ENT license. You will need to recompute the project.