I have 4 sdeter ptz 1080 cameras. Everything seems to be working great in Blue Iris except when I go to play back an alert clip (bvr). Its like the clip is refocusing every 2 seconds. Live video is perfect. I've messed around with the settings and matched key frame and iframe to 15fps on the camera and in blue iris set max to 15fps. I've also set the bitrate to 2mbps and also turned off and on HW acceleration with no fix to my issue.