If you are seeing a black screen in the Track editor for a plugin, this means you may be using the Trial Version of FCPX, which is not compatible with our tracking plugins.
Our Tracking plugins are not compatible with the FCPX Trial version. Please upgrade your FCP to a fully paid version to use the plugin.
If you are not on a trial version of final cut pro but you are seeing this issue, please contact our customer support for further assistance.