Jira Cloud next-gen projects and Connect apps

Are issue’s createmeta and editmeta valid for next gen projects? Would they return the fields available when creating an issue for a giving next-gen project and issue type?

I have found something odd in next gen. Createmeta does return fields that have been created for a given issue type (using the issue type’s ‘Create new field’ tab).

EXAMPLE:

https://somehost.atlassian.net/rest/api/2/issue/createmeta?projectKeys=SNG&issuetypeIds=ISSUE_TYPE_ID_1&expand=projects.issuetypes.fields

But, if you add the same fields (using drag and drop) into another issue type of the same project, these added fields are not returned in the corresponding createmeta of the second issue type.

EXAMPLE:

https://somehost.atlassian.net/rest/api/2/issue/createmeta?projectKeys=SNG&issuetypeIds=ISSUE_TYPE_ID_2&expand=projects.issuetypes.fields

I believe this is a bug. If createmeta is returning false negative, our addon would not know how to create issues in next gen.

Cheers
fernando