How does Portfollio filter on scheduled range work?

[Tom Björkholm]

In Portfolio for Jira (live plan view) there is menu/toggle to filter on a selected range with start and stop date. 

We have noticed that this is not the same as zooming in on a time range. For example: When viewing the full schedule there are many stories shown to be done in January. If we filter on the scheduled range January only a subset of those stories are shown.

Can someone please explain how the filtering on a scheduled range works? What is the criteria for if the filter selects a story for the scheduled range? 

Does anyone have a pointer to some documentation describing this?

(Notice that I am not asking about where to find the menu item. I am asking what enabling of the filter on scheduled range actually performs.)

Thank you in advance for any help/explanations!

Best Regards, 

/Tom

[Tom Björkholm]

Any hope on getting an answer on this?