You realize that nobody here knows anything about your "bird" other than the fact that it flips over right? What do you really think anyone can do to help with only that piece of information? Don't you think you should provide some detail if you want someone to be able to troubleshoot the thing? Or do you think all flip-overs are caused by the same issue?
How was that rude? I was just pointing out that you didn't provide ANY information that anyone could use to help you. It is impossible to debug what you can't see. You don't have to be an expert programmer to be able to understand that. Just mildly intelligent.
You gotta give us at least enough detail to imagine what we're talking about. Describe the issue in detail. It tips over? Always to one side? How long into the flight? All the sudden? Only when you maneuver? You can see the thing. We can't. So you have to bridge that gap. Think about what someone might need to know. For example you say you're a paramedic. So my friend says his back hurts. What's wrong with him? Can you tell without knowing anything more? No you can't. And that's the situation you've put us in.