Multiple Sketch Bends not working

Hi All,

I have a part where multiple sketch bends are used to create folded features above a 'c-channel'. 

These parts are used w/ DriveWorks and a generating fine out of DriveWorks. When I come to move the folded features it will cause errors in all but the first one in the feature tree.

Bends do not intersect with each other and sketch bends work until the model is re-built