Hey Adam, PasteHTML used by code snippets are buggy with Safari. You must know this as it's very repeatable in your demos. Try adding some simple code snippets like below and see for yourself and please fix it.
<item text="Ethnicity">
<value><![CDATA[<span>{Ethnicity}</span>]]></value>
<html>Ethnicity</html>
</item>
<item text="Gender">
<value><![CDATA[<span>{Gender}</span>]]></value>
<html>Gender</html>
</item>