nCloth Alembic and Character Cache

[michaelb01]

I've just been through the tutorial and it works nicely (its a great feature!), but it seems to update the transform constraint without moving the cloth on frame 1. So it works if I pause on frame 50 for example, change the character ID, go back to frame 1 and play again. But if I go to frame 1, change the character ID then play the constrain updates before the cloth so the cloth is stretched on the second frame and the simulation is ruined. 
This would be fine if I were exporting the geometry by hand, however it seems to do this if I export alembic caches for all the agents using the "Misc Exporter" in the character cache.. Have I missed a step?

Thanks

[michaelb01]

Actually an easy fix is to set the start frame of the nucleus to 2 so that the cloth is in position before it starts simulating