Current Behaviour:
When inserting the 'Pie Chart' macro into a Confluence page and using the same filter, the preview screen does not render. Example attached

The jira logs report:

2013-09-16 23:44:39.964113500 2013-09-16 23:44:39,964 TP-Processor16 WARN sysadmin 1424x57799x1 ninlds 59.167.133.100,131.103.27.196 /charts [jira.charts.jfreechart.DisplayChartServlet] File not found, returning 404 (filename='jfreechart-onetime-5137764596391221134.png').

Expected Behaviour:
The expected behaviour of the JIRA pie-chart macro is available when using the macro as a gadget in the dashboard. Selecting an available filter displays the related issues. Example attached

The location of the gadget is: https://<instance>/rest/gadgets/1.0/g/com.atlassian.jira.gadgets:pie-chart-gadget/gadgets/piechart-gadget.xml

The same behaviour has also been observed in the 'Created v. Resolved' macro.

Additionally, existing macros that were saved, now have no charts being displayed within the Confluence page, example attached