I also am having issues with lag. Just noticed after adding two Amcrest 4K bullet cams, they lag 1 to 2 minutes, also effecting payback on random cameras, no video, even though there are thumbnails. BI5 Release 5.2.9.9 x64 Using i7-6820, 16gb, 1tb SSD, main, 6TB storage drive 2 amcrest 4k (IP8M-2496...