Chart disappears when prompted

[aiquis]

Hi all!

I'm building a dashboard based on a TM1 cube but I'm facing some issues with prompts and a certain measure I have.

My dashboard have some charts with the same two measures but with different categories and these categories prompts one another. The measures are Qty_Posts and Qty_Unique_Users.

My prompts are working well with the Qty_Posts charts but the Qty_Unique_Users charts are disappearing when I select more than one option on the prompt.

The charts were made on Report Studio in different queries and using the _BusinessInsight_ technique (http://pic.dhe.ibm.com/infocenter/cfpm/v10r1m0/index.jsp?topic=%2Fcom.ibm.swg.im.cognos.ug_cr_rptstd.10.1.0.doc%2Fug_cr_rptstd_id3063filters_for_bus_insight.html)

Just to note, everything works well if done with a data source different of a TM1 cube.

Does someone have any idea of whats happening?