The mavericks tend to want to lock onto everything right now. Power lines, buildings, you name it. If your target is among a lot of objects, good luck, you'll need it. If your problem is between one vehicle and 1 object, you can try and place your cursor as far away from the problem object as you can while close enough to still get a lock on the vehicle.
I think there are other problems with the A10-A right now, that seem to have been around for a while. I think they've all been reported but unresolved. The cbu97 being the most aggravating.
Good luck flying.