Slow sideways panning of camera, causes it to 'skip' or drop a frame or two every 1 sec. or so, or that's what it looks like anyway. It's not my PC or video player because some test clips play smooth. Having FPV mode on makes it worse, and I've tried different ISO's with same test scene and some will be smooth, others not; so it may be related to shutter speed. Only seems to happen on 4K60 at any of the 3 video quality settings; bitrate I've been using is generally 60 mbps however. Tried various f/w 1.2 thru 1.3, doesn't help. Anyone seen this?