We are using Jira Service Desk (Jira Service Management) and we have customers using it.
For some of the requests that come in, we're creating a subtask to help track the work and assign that subtask out to a different team.
Unfortunately, when we try to edit the fields for this subtask, the "Configure" button is grayed out and we see this message:
"You can't configure the layout of an issue while it doesn't have a request type."

This is making it really hard for our agents to actually work and complete these subtasks because we can't configure the fields that they see (or don't see).
We've tried to create a request type associated with the subtask issue type for this project, but that doesn't work either: we can't directly create a request type that opens a subtask issue type (which makes sense: subtask issue types can't be unparented).
Thus: how do we configure the subtask issue type for this project?
(Note: we've already tried editing the screen, and that works for the old issue view, but those changes aren't persisting for the new issue view).