Is it possible to create a more simplified setup of this example? (IE. a basic embed with a single companion with fully visible setup code) Also, I have noticed that your companion div is set to be hidden. Have you tried disabling this?
Companion ads should be in a separate creative section similar to:
<Creative>
<CompanionAds>
<Companion id="1" width="300" height="250">
<StaticResource creativeType="image/jpg">image1.jpg</StaticResource>
<CompanionClickThrough>http://www.jwplayer.com</CompanionClickThrough>
The companions in your ad tag are not firing, which is why we’re not firing this API call. Please see our example tag here:
http://support.jwplayer.com/customer/portal/articles/1433869-companion-ads