Does the extra parameter(s) from the permalink break the behavior of the plug-in?
If the URL is properly formatted (Example: you copy the URL from the browser’s address bar), then everything should be OK. Some video services like YouTube may use extra parameters within the URL besides the video ID. Other services such as Dailymotion use a permalink structure which isn’t very friendly, but XVE handles it nicely as long as the video ID is valid.