Can`t use MofidyCurve with "Disable post process blueprint" enabled and bone look at with it disabled

I`m trying to make my metahuman look at the camera at runtime. What i trying to do is using Look At function in face animation blueprint and it works just fine with Disabled post process blueprint, but i need to use ModifyCurve for my lipsync system. How could i solve this?

Here is my LookAt BP:

Disable Post Process Blueprint i`m asking about: