VrayNext--VrayMtl roughness grayed out

[maxtrks28]

Hi, since upgrading to Vray Next the material roughness is grayed out and cannot be adjusted. Is there a way to make roughness editable or is this not available with Vray Next?

thank you for your help in advance!

[maxtrks28]

Wrong category--this is not a licensing problem. i reposted it in the correct category.