Hi @gregnemes
The WP WYSIWYG field (different to the default WYSIWYG field) does not work within the repeater field. This is stated on the add-on page:
http://www.advancedcustomfields.com/add-ons/wordpress-wysiwyg/
It is not possible to get it to work as a sub field due to the way in which it is created via PHP – rather than JS.
Thanks
E
