I am trying to:
After using the multiple roles per user feature to add additional roles per user, I can only change the post author to myself or other users assigned administrator role.
Link to a page where the issue can be seen:
WP admin post editor
I expected to see:
I expected to be able to see all of the users in the author pick list (as before).
Instead, I got:
Instead, I got only got the ability to the change the post author to myself or other users assigned administrator role.
I tested the same, but couldn't reproduce the problem.
With Access enabled I added several additional roles to an author. I then edited a post and that user was available in the author dropdown.
I tried switching things around and making the primary role a minor role (subscriber) and other roles with publishing rights as secondary roles, and it still worked correctly.
Can you try reproducing on a skeletal site with just Toolset plugins active and a default theme?