NX9
I swear there is a setting, when you have a component that is the display part, and you change to display the assembly. I have one user where is changes the assembly to the work part, not allowing a work in context, unless the user makes the component the work part again.
First suspicion was a metric component in inch assembly, but that is not the case.
Where is this setting? I'm obviously not using the right search word in the Customer Defaults.