When using the Scrum board inline + Create under a parent issue to create a sub-task, Jira opens the create dialog without a project selected. The dialog immediately displays "The issue type selected is invalid". If a project is manually selected, Jira opens the standard issue creation form (Story/Bug/Task etc.) instead of the Sub-task form. Network response contains:
1 {
2 "errorMessages": [
3 "key not found: 'jira.user.gic.modernised.create.always-open-fallback-view.spotlight'"
4 ],
5 "errors": {}
6 }
Creating sub-tasks from within the parent issue works normally. The issue affects all users and multiple browsers.