User Roles Not Getting Updated

Question

I am facing a issue in Sitecore UI when I am editing an existing user to add/delete 'User Roles' under the 'Member Of' tab, its not getting updated. However, when I am adding a New User and assigning the User Roles, then it shows up correct. Any idea whats causing this issue/Or anyone else faced the same?

This issue is also referenced by some other person here. I attached an image for more reference!

Tried looking up online but in vain, hope someone can assist me on this. Thanks in advance!

EDIT: Step by step of what I am doing:

Hope this illustrate the problem much better!

Answer 1

I had the exact same problem and it turned out to be solved by ensuring the App_Browsers folder was in the root of the website. When this was not there, several dialogs would not save correctly (User Roles, Security Assignment to items)

Answer 2

I had the same problem but Jay S's solution didnt work for me. I'm using Sitecore 7.2

The problem is you can't add roles to the user, but what you can do is add users to the role.

The workaround is to go to the Role Manager, then click on Members and select the users to add in to the role.