WS_DOWNLOAD problem

I am trying to download an internal table with WS_DOWNLOAD. With one table (others work) the data I am getting is garbled in some fields (see below)

{{{{{ b|{{{{{{S,{{{{{ \

The only difference I can find with the tables is that the one I am having trouble with has a few fields of type CURR and CUKY and it seems that this is where the data is bad.

Does anyone know if there a problem with these data types in version 4.6C?

Thank you,

Scott