[Process and Task dashboard] Drilldown using metric charts is broken

After metric displayer feature enhancement some drilldown functionality in Process and Task dashboard stopped working:

1) None of the 12 metric displayers (Total processes, Active processes, ... and the Total tasks etc) works - clicking them does nothing whereas previously it selected data for the metric clicked.

2) Also for other charts, clicking some part of chart (e.g. process name in Process by type) seems to only apply the filter on OTHER charts, but not in the chart I clicked (see video attached). For example when I click HumanTaskProcess in 00:04 it selects data for this process in other charts, but "Process By Type" still displays all the processes.

EDIT - I verified the previous behavior with 6.4 product and it turns out I made a mistake: the problem described in 2) above is actually expected behavior - only the first problem needs to be fixed.