BizTalk 2009 FTP cannot retrieve files with spaces in the filename?

Question

I was having a little trouble with reading files using the FTP adapter. Several warnings and errors were found in the application log, and it basically boiled down to this message:

A stream read or write operation failed because the stream is in an error state.

Upon inspecting the log, I was surprised to find:

< 125 List started.
< BEBI           827693 24/09/14 15:53:51 *STMF      mes9_ corrigido2.csv
< 250 List completed.
> TYPE I
< 200 Representation type is binary IMAGE.
> PORT 192,168,205,82,213,48
< 200 PORT subcommand request successful.
> RETR corrigido2.csv

so, there is just a single file with name mes9_ corrigido2.csv (notice the space) and BizTalk tries to retrieve a file corrigido2.csv. Is this normal behaviour?