The Units page was only ever meant to show the units for the World Map, and this it does correctly. By "new default units" I assume you are referring to World Map 2.0, but if we're going to show those we would need a totally separate Units page for World Map 2.0. We can't mix units from different maps together.
Anyway this is not a bug since it is currently working as designed, so I'll close it. But just so you know I will be building a new Units page where you can select the map you want to view units from. (and by that I mean ANY map, not just World Map or World Map 2.0). This has been on my list for a while.