How to attach alembic groom

I created an alembic groom hair for my character using Xgen in Maya. Everything is working correctly however it doesn’t stay attached to my character when simulating. I created a groom binding also but it doesn’t appear to be working.

If I move my character around in the viewport manually the hair stays on but once I start animating my character using mocap the hair does not move with the character. The hair does not move at all.

Not sure what I’m doing wrong. I followed the few youtube videos I could find about this. Any ideas?