Hair appears in a weird pattern such as the frame from the animation above, another image showing how the hair sits correctly outside of sequencer. Exported alembic groom from a particle system in blender, body and head hair are separate with their own bindings. I’ve adjusted the bound scale up to 10, increased the scale slightly.
I worked around this by baking the animation into a sequence. Put in a duplicate character for safety and applied the animation, the hair was still not working until swap root bone in the animation properties was changed to switch to component. Now dealing with light flickering BUT the hair looks good