My project administrator can't add a user to the watch list for an issue.
I used the permissions analyzer to analyze my project administrators permissions and it says they have permission to modify the watch list. I added the user to the watch list and the project admin successfully deleted the user from the watch list, so he clearly has permission to modify the list.
When I add the user to the watch list, I see a list of users pop up as I start to type in the users name, and I see the user in the list. When my project admin starts to to type in the name, no names come up and when he enters the full name JIRA reports the error that "User does not exist". He gets the same response for any name that he types in, including mine. Yet I can do it the same way and the user is recognized.
We are using JIRA 6.1.3, and I have full adminstrator privileges. The project admin has privileges that are accorded to the groups that he belongs to.