I am using Jira Core hosted in the cloud. I have permission to create issues. When I click on an issue from my board, I have the option to create a sub-task by clicking the "Create subtask" button. When I click the "Create subtask" Button, a box appears that says "Subtasks" with the description "What needs to be done?". I am given two options: "Create" (which is greyed out) and "Cancel". If I type in the box, the "Create" box changes from being greyed out to blue. However, when I click on "Create" nothing happens and no subtask is created.
I have checked and both the Task and Sub-task issue types are allowed in the assigned issue type scheme.
Any and all help is appreciated.