one camera has ghosting and removes people

Thanks, I turned off the hardware acceleration and the ghosting went away on the live viewing. the replay of clips had ghosting bad. I have changed a couple cameras to save clips in 30 minute increments so i could email them is necessary and i could view them after they have been recorded

I know Hikvision cameras can suffer from terrible ghosting if Noise Reduction (set in the camera) is set too high...I keep mine at 50% during daytime and have it set even lower during night time. Not sure if your cameras have that feature, but it's worth checking out if they do.
 
I am having the same exact issue with my Amcrest ip3m-954eb, using hardware acceleration. Any motion gets "removed", is ghosting, and has the digital "noise" at the top of the image if hardware acceleration is on. If it is off, it works perfectly.
 
that the same with me, i have an amcrest ip4m and the HA seems to work with it. i didn't notice any benefits to running it though, my CPU usage didn't go down any. i am using an old intel nuc 4250 1.3 ghz and it can only take 5-6 cameras before it gets maxed out. even with recording turned off.