Unable to create Email Campaign – Sitecore EXM (3.2 rev. 160127) – Sitecore BUG

There is a bug in Sitecore ECM/EXM (email experience manager – revision 160127) that when you try to create one-time message and you click on any available template. It immediately disabled the create button and shows following error in browser console. Uncaught TypeError: ┬áCannot read property ‘callback’ of undefined.     Sitecore reported it as[…]