How exactly does subject feature work. I understand what it's supposed to do but after filling in all necessary info and try to generate. It still stacks all the patterns on top of one another.
When you ran the flat pattern layout, check to make sure that you have the "Net" or "Extended" options set correctly. If you only had extended flat patterns in your part for example, you would want to set the option to extended.
I am just throwing this out there as a quick answer as I have seen many others ask the same question in the past and this was the answer.
Tell me if this helps!