I'm using Clo avatar Feifei and the auto grading works from the default size to a bust of 36". However, even when the pattern is assigned to a size and avatar, the graded patterns are not selectable. See screenshot where I've selected size S (default Feifei size). Only the size large pattern is selectable and I'm unable to edit the size small pattern or grade back down to size small. 

Is this a Mac issue or an update version 6.1.250 issue? 

Can someone please let me know?