Hikvision Poor image quality after firmware upgrade of cameras and NVR

Hi.

I recently updated my firmware for my NVR 7DS-7608NI-E2 / 8P/A to firmware V3.4.98 build 171121 with cameras DS-2CD2142FW-IS and DS-2CD2542FWD-IS firmware V5.5.53 build 180730. I also have 2DE4220IW-D and 2CD6362F-IVS (which are un-affected).

Since the updates I have noticed when watching live view in 'MULTI SCREEN' the image quality is poor and pixelated. The same goes if I use my NVR, iPhone, IPAD or via my PC iVMS. If I choose single screen on the NVR the picture...

Hikvision Poor image quality after firmware upgrade of cameras and NVR