Notes from STAFF:
The New Blog Templates select only shows up on two of the members 6 Gravity Form sign ups: https://www.screencast.com/t/BUmptBC5q
All of them have "Display Templates Selector" selected: https://www.screencast.com/t/viJFeBsrsI (scroll to bottom of that page)
It works in the previous version of NBT (2.8.4)
**support access granted and plugins attached on linked internal ticket.