Rest API Call /issues : Epic Issue Type is missing

[Jens Kisters //SeibertSolutions]

Hello folks,

i have a Jira Software 7.9.2 Instance which has at least one user who doesnt get the Epic Issue type listed when calling 

/rest/api/2/issuetype

The user is a software user, but not an admin.

What could cause this behaviour?

 The API Docs say "Returns a list of all issue types visible to the user"

How is visibility determined?

The Epic starts to show when i make the user an administrator, but why?

There are only Business Projects in the system.

The Epic is just part of the Default Issue Type Scheme which is not assiged to a project.

None of the projects have epics enabled.

Thank in advance

Jens

[Jens Kisters //SeibertSolutions]

I have now created an empty Softwareproject and made the user administrator there.

It works as an workaround, but i am not content with this solution.

I'd rather not have that project in the list when creating new issues and still have it listed in the rest api call result.

Background: We have an addon that stores some configuration information in the properties of that issue type, we dont want the users to use epic, the should just be able to use that addon.