In different areas where I need to set users it is saying no names and when I try to type in the username nothing comes up, this is the same for a number of my team members.
Please help
This sounds like you do not have "browse users" permission. Log in as an administrator and check that you have the permission - go to Admin > Global Permissions and check the groups who can browse users (unless you have a good reason not to expose the full list of users to everyone, a lot of us simply put "jira-users" in there, so it's global)
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