Webi don't show attributes from BW

Hi, Gurus!

I'm working with BI version of SAP BusinessObjects 4.1 Support Pack 2 connected to a BW 7.4. I have a Webi report based on Bez Query Designer and the problem is that when I drag a characteristic's attribute to the report, the "#" value is displayed. I check the feature attributes in BW and the data seem to be active and well-loaded. 

Reporte:

BW:

What is it that I'm doing incorrectly?

Thanks

LUCAS