Maybe KTM changed the bolt spec.?? I cant see how this issue would be so random either. Maybe we should ba asking a few more questions.... like year model.
I'll start by confirming that my and a friends 04' has had the cam bolts removed multiple times w/o issue. We lubed the bolts on install with motor oil and torqued to spec using torque wrench (using steped torquing described in manual).