Cannot add user in Jira group. User is already a member of the "group"

[migueltantay]

We have an issue on specific user. There is no notification was being emailed to him even he is a member of the said group. Base on the investigation user he is not member of the group however even we added to the group it said the user is already a member. There are a lot of associated projects Is there a way how to fix the group without deleting the group and recreate again.  

[kyona]

Try following:

1. Remove all groups from that user. This should eliminate the problem with "this user is already a member of a group".

2. Assign user again to desired groups.

[timofey_shklyarov]

it helped, thx much !

[Nic Brough -Adaptavist-]

What does the log file say when you try to add the user to the group?