Limitations

FTP is a relatively fragile protocol, so it comes with some limitations which are also present in FileZilla.

1. Leading space of filename

This happens on FTP servers not supporting the MLSD command. On those servers FileZilla falls back to LIST. Unfortunately the listing format returned by LIST is not standardised. It is impossible to distinguish leading spaces from padding. To solve this issue, simply upgrade to a modern server supporting the MLSD command or refrain from using leading spaces.