Issue Summary

An incorrect project key in the Board URL results in a suffix of /not-found, leading to a 404 error when attempting to access any issues on the Jira board.

Steps to Reproduce

1. Enable Jira new Navigation from your personal settings. https://support.atlassian.com/jira-software-cloud/docs/what-is-the-new-navigation-in-jira/
2. Navigate to any Board in the project . For example : https://<sitename>/jira/software/c/projects/SSP/boards/104
3. Now change the Project key in the URL to something else. https://<sitename>/jira/software/c/projects/IN/boards/104.
4. Notice here that the board with 104 ID is not the correct location for the project IN. Its actually in SSP.
5. Press enter. I.e. go to https://<sitename>/ jira/software/c/projects/IN/boards/104.

Expected Results

In the old Navigation the URL stayed intact, and the correct Board with id 104 was loaded in project SSP. Even though the URL contained incorrect project key.

Actual Results

It navigates to the correct board and project, but insert in the url “not-found” as jira/software/c/projects/SSP/boards/104/not-found.
This leads to issues in opening the work item. On clicking any work item from the board there is 404 error, due to this malformed URL now.

Workaround

Make sure the URL stored in browser as bookmarks points to the correct project. In the above case it should be https://<sitename>/jira/software/c/projects/SSP/boards/104