HIKVision CCTV Footage Download Blank Issue

We've been made aware of an issue with the HIKVision CCTV footage not playing back on any devices after being exported from the DVR/NVR. We used to recommend customers use VLC Player, but this now doesn't play the MP4 file generated by the recorder. 

You must now use the VS Player direct from HIKVision. You can download this at your own risk from the following link;- http://www.hikvision.com/en/tools_82.html