Sorry but is not buggy. It is your system. Or a combination between the CRJ and other plugins. As you can read in the forum, many users are flying it. Just remove your plugins for testing. We are working in future compatibility but this in not our fault. It is something that we say in our plugin that to xplane something has to be A and other plugin says same thing has to be B. But we need that thing to be A to make the CRJ work. So we are sure the plane works with some plugin combination but not all.... and we need to work with other plugins developers to maximize compatibility... and that is not easy because some people disappeared after they did their plugin, and other addoms are expensive to buy just for testing.... and we cannot afford it, so that developer has to work in a fix. So, you paid 60$ for a working plane. But your system configuration or plugins don't let you play. Make testings inside a new demo instaled of xplane and try removing the crj from your defaul xplane, and installing in the demo. And think if others are playing with it, then something is not going ok inse your system, not the CRJ