A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
Separate names with a comma.
Update - I'm a noob! Quitting Unity asked me to save my project - I guess the whole time I haven't had it saved. In doing so and re-opening the...
Can confirm - I'm also going through a tutorial and having this issue. It actually made it so some of the functionality of the demo no longer work...