Editing user rights

Hi!
I think I've found a little bug but it is not urgent for me. I just want to let you know it.

I've created a new user with "read only access" and selected "Only the selected Business Views". I didn't choose any business view.
I've logged in with this new user account and had to assess that there where no alarms shown (because of the non given rights).
I've edited the user once again and selected now "All devices". This option is not savable any more. I saved the new setting and edited the user once again. The radio button shows "Only the selected Business Views" again.

Did I do something wrong or is there a bug?

Kind regards,

Mok