Blendshape Maya 2018 problem help

#1

I just applied blendshape to an object but the blendshape does not appear when i move the blenshape slider. Only after move the vertices of the mesh would the blenshape suddenly shows. This makes my work difficult. IS this a Maya 2018 bug? or is there something i missed? It seems this problem only happens in Maya 2018.

#2

does it work if you key it and use the timeslider.?

#3

I have exactly the same problem.

The most simple deformer is just completely broken. Running 2018.2. Terrible stuff.

#4

Okay I found turning off parallel evaluation helped me.

#5

probably a driver thing

have a look here for the recommended drivers
https://knowledge.autodesk.com/sites/default/files/HardwareCertificationResults_Maya2018_Update2_v01.pdf