Issue details graph allows to filter displayed issues. There are four available filters:
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The content of the drop-down menus' of filters, reflects options available only in the displayed graph's issues:
The above images present situation where none of possible filters were selected. However, when one does so, then the displayed content's display should shrink. The below example present a situation where Link Type was set to display only the "Relates" and "Git Code Review" types of it, whilst Issue Type was not yet altered:
In addition, when only one Issue Type, "Story" becomes selected, then further modification of the graph is to take place, to show as an effect:
Right bottom corner of the graph contains information how many issues have been hidden because of the used filtering (in other words - how many issues do not meet any of the criteria set by the filters).
There might be a situation when an issue that matches all of set criteria is hidden. It is because such issue has no connection to a root issue due to another one that doesn't match criteria.