Flew my P2V+ this morning and noticed it has a very slight but noticeable up and down bounce to it now. It just started happening without any changes made in the software or hardware. Gain settings are all stock. I'm using the most current version of the Phantom program and firmware as well as the most current iOS vision app. I recalibrated both the compass and IMU but it still does it. I noticed with the props spinning on the ground it doesn't do it. But once I get airborne it happens. There is a bit of minor shake in the legs but nothing out of the ordinary from the dozens of flights I've done in the past. The bounce is strange, just a slight up and down but I can't use it to take video at all now. Any ideas? Thank you all.