Yes, I have reset to factory a couple of times. Empire tech also telnet'd into it and did reset. I haven't heard back from them. I have also re-flashed the firmware between the two versions they have given to me.
I have run the camera on separate 12v supply and also with POE and have tried several different cable - none of it made any difference.
It seems like I gets worse as the camera heats up although it could also be due to lighting changes.
The original two photos were run on a 12v supply. The 2nd one with the halo was a night, while the first photo was during the day albeit not a particularly bright one.
The first of the two photos are from the same camera mounted outside via POE and the last pic is from a Dahua HFW3200S placed nearby to watch for any critters (two or four legged variety) wanting to use my xmas decorations for their own nefarious purposes :-)