Cognos 10: External data are not displayed using crosstab object?

[abcuser]

Hi,
today I have installed Cognos v10.1 64-bit fixpack 1 on Windows 2008 RC2.

I have opened Report Studio to see what is new and have found out tutorial on YouTube to see how to include external data into report. So from Insertable Object window I have clicked on "Manage External Data" and defined CSV file as input file.

If I do above with List object then data are displayed. But if I create new report as Crosstab then no data is displayed.
Is this intentional or is there a bug?
Regards