Hi David,
I found the solution. I tried it and it works.
For see the solution 1272916 - Displaying Texts for hierarchy node variable in BEx
In summary:
+) Goto the transaction RSDCUBE and enter your InfoProvider.
+) Select the InfoObject from the dimensions.
+) Right click on it and select "provider-specific properties"
+) Now for the display option select the expected text type.
Regards,
Gabriela