I’m sorry for not replying; I did not receive your reply via email, even though I enabled “Notify me of follow-up replies via email.” We disabled URE when we had this problem, yet want to re-enable it as we need to diagnose other user role issues, so I just checked your forum and saw this reply (and a more recent reply as well, to which I’ll respond shortly).
I will re-activate URE latest on a test site on our multisite, then will look into the edit_post capability.
Jim P.