Symptoms

When transitioning a Jira issue from one status to another (e.g from "In Progress" to "Done"), its status remains the same with no errors in the User Interface.

Diagnosis

The affected workflow transitions do not have a "Set issue status to the linked status of the destination workflow step" post function. This can be validated with the following steps:

1. On Jira, go to Administration (⚙ icon) > Issues > Workflows 
2. Find the affected workflow, then click on "Edit"
3. Choose the "Diagram" view, then click on each workflow transition that's affected by this behavior
4. Click on "Post Functions" to display all existing post functions from each transition
5. Confirm that "Set issue status to the linked status of the destination workflow step" does not appear in the list of post functions:

Cause

The missing "Set issue status to the linked status of the destination workflow step" post function is responsible for updating the status information after an issue is transitioned. It is required for all workflow transitions.

Resolution

Add the missing post function in all affected transitions with the following steps:

1. On Jira, go to Administration (⚙ icon) > Issues > Workflows 
2. Find the affected workflow, then click on "Edit"
3. Choose the "Diagram" view, then click on each workflow transition that's affected by this behavior
4. Click on "Post Functions" to display all existing post functions from each transition
5. Click on "Add post function", then please choose the "Update Issue Status" option and click on "Add"
6. Click on "Publish" to apply the workflow changes