An issue has been identified around management of Minyaa Plugin from UPM (See the Post and MYAA-1474)
The bug has been raised to Atlassian : JRA-40530

Report: Workload Pie Chart Report

Description:
A report showing the issues for a project or filter as a pie chart.
Description:
A report showing the issues for a project or filter as a pie chart.
Project or Saved Filter:
Select Filter or Project...
Project or saved filter to use as the basis for the graph
Statistic Type::
Select which type of statistic to display for this filter.
Time field to report on:
Select the time field to use for this report