Does not work with custom meta boxes

I have created a custom meta box using custom fields that gives users a second editor screen on a two column layout. If I insert the shrotcode in this second editor, it does not show on the site. If I insert it in the first editor, it does display. (Custom meta box created with Easy Custom Content Types plugin)

https://www.ads-software.com/extend/plugins/hana-flv-player/