Sync markers inside Blendspace not work?

I have wander and walk animations. I want to Blend them inside 1D-Blendspace. I placed markers for left\right foot on both animations.

When i put these animations inside my blendspace, they did’n work (jagged blending). Why? See my pictures.

Myriad of reasons.
Go over this, make sure the system is working first.

Once the system is working, we’d need to be able to see the end result in action to even have a guess as to what the issue may be.