Hello,
To a specific project, I wish to add a required select field to the Task and Bug issue types.
I have created the field at "Custom fields" in Jira Settings -> Issues.
But the field is nowhere to be found when creating or editing a bug or task in the project.
I have checked all screens for the custom field.
I think that issue is that somehow my projects are not linked? When trying to add a context to the custom fields, the projects selector is always empty. Screenshot:

I have all user roles, site-owner, administrator etc. So permission is not the issue.