Just to exclude – check the case if “Post View” for this user role has “Block not selected” option turned ON. This will block view of all posts if there are no other criteria inserted.
If that’s not the case, is it possible to receive access to a theme, plugins files and database copy of this site or stage site where you can repeat the issue? If Yes, share them with support [at-sign] role-editor.com via DropBox, GoogleDrive or similar.
