Robust statistic segmentation crash

Hi! I have a problem with the plugin Robust Statistic Segmentation.
It crashes when i launch it with a previously saved segmentation,
it works quite well if I use a segmentation it is done in a single session.
I am using 3DSlicer version 4.10.2 r28257 in Windows 7 64Bit

thanks to those who can help me
fabio