Metahuman and cloth glitches on rendering animation UE4.72

Hi all experts.
Can anyone suggest how to get the eyebrows back in my metahuman of my boy.
In the editor viewport they are there and fine, but when rendered, they disappear.
Also the cloth of this paragon character reacts very strangely as you will see in the video.
There is no wind, just basic paragon mesh
Any advice would be greatly appreciated
Thanks
Simon