Tagging on to Videotrack's, comments...
Also make sure that you have the latest update. This includes CoyoteWT for 64-bit as well.
The latest update is found at the below URL
https://www.pgmusic.com/support_windowsupdates.htmLastly, CoyoteWT is a DXi softsynth. This means that it's read from Windows registry. With this in mind, it would be a good idea to fully restart your computer just to make sure that the latest registry is read into the operating system.