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.
Solved! Go to Solution.
The customer defaults has a 'tooltip' that says it only affects the default value, the real value is stored in the registry. If changing the customer default doesn't work for you, try going to preferences -> assemblies -> work part: maintain.
Dealing with large assemblies, it takes considerbale time to display parent assembly part and then making it as work part. This preference is really helpful.