I have a plan which includes issues from multiple projects and want to create an issue type (above Epic). It is included in the filter, so I can select the issue type. However, when I select Create Issue > Unassigned. I am only able to see a subset of projects instead of all the projects for which this issue type is available.
Separately, I am able to create the issue type using the blue 'Create' button in the header in Jira.
Thanks for your advice!