Suddenly, the Create Linked Issue option available under the More menu is no longer available for one of my projects, but is available for others. I've checked and compared settings and they seem to match. I've also checked permissions and settings and everything is on and active. This is in Jira server. My project is a Software project but it looks like this function was enabled for Software projects in 2016, and my team was using this without issue until suddenly yesterday it was gone. This issue is on Jira Server, not Cloud.
These have all been checked but the issue remains:
Check Project Permissions:
Ensure you have the "Link Issues" permission for the specific project. You may need project/Jira admin permissions to check and modify permissions.
Use Permission Helper:
In the issue, go to "Admin" > "Permission Helper" and check the "Link Issues" permission.
Check Issue Linking Functionality:
Verify that issue linking is enabled under Admin > Issues > Issue Features.