Not admin (must be part of syncloud group)

I think I have the same problem.
1- I have an admin and 2 users. Only the firts account is admin:

In fact, if i sign in with one normal user, it is no admin, and cant add new app:
image
I tried to use “users app” inorder to make the normal users to be admin.
It is suposed that you must take that users into “syncloud” group:


but, as you can see, i taked the users into syncloud group, but it does not work