Has anyone had a issue with the XP1000 shifter getting stuck? It happened to me in Rev and Low. I keep pressure on the brake and it feels like throttle is also advancing. The only way to get out of one gear to another is to shut the machine down and restart. One time I had room to keep lunging forward after about 20 feet the shifter released without shutting down. In the other cases I had no room to move forward or reverse ( whatever gear I was stuck in) so I had shut key. I have the unit 3 weeks. It’s happened 5 times. Any thoughts?