Admin Layout Sections - Fields are not showing?

Hi Everyone - just installed RC v2.1.0 recently and when I tried to add some content in the layout section, some fields are not showing up for some reason. Please see attached screenshot…

I was wondering if anyone has seen this issue & how I can fix it…

My RC version: v2.10
Mongo version: v4.2.1

I’d appreciate any input please… Thx.