Types was already installed. However I did test on a brand new WP install with a fresh unmodified Types plugin and got the same results as below.
As soon as the plugin is activated the FV Player button functions as follows:
– Create a new Post, Page, or Custom Post –> FV Player button functions normally.
– Save then edit or edit an existing Post, Page, or Custom Post –> FV Player button does not function.
Deactivate the Types plugin and edit a Post, Page, or Custom Post –> FV Player button functions normally.
I am experiencing the same issue. I also have types installed. If I click the FV Player button on the editor with the Types plugin active nothing happens. If I deactivate Types, the FV Player button works normally. Types is an essential component of my site.