I've got most users in UserApp that cannot edit their own information.

Example is "telephone number"

It shows up that you CAN edit it in UserApp (default, out of the box

User goes to edit it, but when they click Save changes they get the
little red error that says:

User "cn=jsmith,ou=blah,o=blah" does not have permission to modify
"cn=jsmith,ou=blah,o=blah" or related objects.

User CAN edit their own stuff in eGuide.

I've checked and the [This] object IS set for "S" rights in our O=BLAH
and set inheritable for that particular attribute.