tesselation material from ue 4.7 goes blank in 4.8 and 4.8.1

its the new version of 3dsmax 2016.
i am using fbx export 2014/2015, with fbx export 2016 i got a crash while importing to ue4 and got back to fbx 2014/2015
here are export settings:

and here the import settings in ue 4.8.1