Thnx everyone!!!
Out of frustration I was pressing buttons randomly and couldn't make to connection.

Would it be to much to ask for a filter by nationality in the core list?

After the 9.0.6 update I can't rename units.
Tried the following
- from unit card
- from roster list
- during deployment mode
- during play
- older core
- new core
- on a unit with already changed name (from older save) renaming with blank either retains current name or restores the game default ...