Error after upgrading to Cognos 11

[vasudev_jain]

Hello everyone ,

I am seeing an issue in Cognos 11 while working with combination chart.

Required - to filter the the chart to give data for  last two years .

Whats being done - using a filter in report [Created on year key]>cast(extract(year,current_date)-2,varchar(4)).
Inputs- the data item [Created on year key] is in string & has values (2020,2019,2018....).

When running the report it is throwing an  error - XQE-GEN-0005 Found an internal error: java.lang.IllegalMonitorStateException.

It will be really thankful if anyone can help on this .