Hello,
It looks like maybe OIT upgraded the CK Editor again and broke some of the custom styles that Ollie had loaded on our WYSIWYG editor. This link below describes what happened before:
In particular, he listed out those styles that need to be re-added:
h2.article-heading|Article Heading Open Sans
h2.article-heading-yellow|Article Heading Yellow Box
h2.red-heading|Red Heading
Thanks!
Jonathan