That's strange : not earlier than this week-end I updated the FTPMount guide with CubicIDE and experienced no problem at all !!
Can you see what is the difference between the working file and the other ?
In CubicIDE you can validate the guide : what is the result of this validation ?
If CubicIDE produces bad guide files I think you should try to get in contact with the author (Dietmar Eilert, see contact infos at
http://www.developers.2go.cc/contact.html)
If you want you can email me the file to see if I can produce the same error with my CubicIDE setup.
EDIT: typo
EDIT2: on OS4 to see graphically what are the differences between the two files you can use AMUIDiff, see
http://abalaban.free.fr/index_amiga_projets.html (just some auto-promotion