Summary

Some issues are categorized as "Unassigned" instead of showing under the Shared Teams after change View Settings > Group by to Team.

When trying to fix the Unassigned issues, those teams can't be searched or updated in the issue Team field.

Environment

• JIRA Software Data Center v8.20.10

Diagnosis

• Issues shown under Unassigned category does not have a Team assigned to them.

• Check the Parent issue assignee is part of the Team in the Plan via Plan > Teams tab. For more information, please refer to the Teams report documentation.
• Check whether the Team is categorized as a private or shared team. A private team from another plan will be tagged as "EXTERNAL" in the plan.

Cause

Unassigned issues is not allow to assign to a private "team" created by other plans. 

Solution

To assign a private team from another plan to the issues, you may need to go to the other plan to find the private team and share the team manually.

To find the team origin created by another plan. Run the following SQL select statement to find all the private teams in the plan:

SELECT 

p."TITLE" AS "PLAN", 

t."TITLE" AS "PRIVATE TEAM" 

FROM "AO_D9132D_PLAN" p, "AO_82B313_TEAM" t, "AO_D9132D_PLANTEAM" pt

WHERE p."ID" = pt."PLAN_ID" AND t."ID" = pt."TEAM_ID"

AND t."SHAREABLE" = false;

Look for the plan that has the private team created under Plan > Teams tab and change to shared team.

Once you share the team, you can't change it back to private. There is a known improvement request for the case - JPOSERVER-4387 - Getting issue details... STATUS