Sub-product showing in Parent product join field

Hi,

In Product Categories I’ve created a Parent record. Then I created another Category record and selected a parent. Now I’m seeing that record in the Parent Record field of the Parent. If I edit the parent that field is empty but it shows in all other views.

Usually if I in-line edit the parent relationship it goes away. But if I create another child record it retains that.

Attached is an example. This record is marked as a Parent. It should not be showing anything in the Parent category field.

Thoughts?

v7.5.1 with MySQL Database.

Thanks,
Jerry