Regeneration Problems

[allainmfg]

I have designed a parametric conveyor and I have some slots to bolt the troughing idlers and I installed some washers, lock nuts and bolts in the model. But when I change the length of the conveyor and I do a regen, pro-e gave me a failure diagnostic because of the references of the holes. I need to do a supress on the hole feature and on the bolts then I just need to activate the part with the holes and make a resume, it resume the holes and the bolts without any problems. Does anyone knows why it does that and if there's a way to solve that problem ? It might be because of the programmation but I can't figure it out.

Thanks