Troubleshooting Wonky Autopilot

[Agrajag]

So, while flying a route from KORD to KMSP (via VATSIM), all was totally fine. Third flight of the day. No incidents at all. I'm closing in on a VOR (EAU) when I notice the plane (FlyJSim Dash) is suddenly just deciding to bank hard right. I wrestle it back. I turn of AP. I set up everything again. I engage AP and the plane immediately tries to climb at 25 degrees up (or more) and bank right again. No NAV, HDG or any AP entry will work. I ended up just manually flying into MSP from EAU all the while fighting the plane. I notice the elevator trim is all the way up. I get that fixed and just set a HDG and follow it manually.

 

How can I go about finding out what caused this as, clearly, I'd rather not have it happen again. 

 

What did I add to the mix? Well, I had just bought X-Mapper Pro for my iPad but I hadn't touched it other than to zoom in as I got closer to my destination.

Sent from my SCH-I545 using Tapatalk

[ScottVal]

I've been flying the FJS Dash for a little while, and I've noticed the AP is a bit squirrely too.  I'm not sure what to say, other than have you tried the FJS forum or support?