stablebit drivepool seems stuck?

[nightrider1470]

I notice at the bottom bar it says duplication and is working away doing its thing! But it's been constantly stuck at 56.2% and doesn't move any further.

Anything I can do?

All my files are from 10Gb-50Gb.... So maybe it's just taking so long as the movie files (MKV Blu-ray) are so large???

Thanks so much!!