Upgraded from 2.4.1 all services/entities in Global Team. Team admin role has been inherited by itoa_admin. The "bulk" import options do not appear for any of the existing users but as an admin role they do, adding admin role to an existing itsi admin user does not work.
No errors visible in logs, all capabilities are per the docs and this is in a search head clustered environment.
Have you tested creating a user that has only the itoa_admin role? I've hit a few issues with a fresh install of 3.0.1...
I've found that a user with multiple roles isn't working in my instance but a user with only the itoa_admin role works fine.
In my case it was bug ITOA-8598 (Role inhering from itoa_admin does not behave like itoa_admin), I found explicitly adding the role to the users who also had admin made this work as expected, so I will use that as a workaround until this is fixed...(no ETA)
I have the same problem after installing this updated version. Nothing described here so far has helped. I've granted myself IOTA Admin, Admin. Separately, together etc... still doesn't show the button.