The FTP multiple file commands can only handle 9998 files?
7053 ยป The FTP multiple file commands can only handle 9998 files? 12-Aug-03
The built-in FTP command-line client can only handle 9998 files with the MGET, MPUT, and MDELETE commands.
When the limit is exceeded, you receive no error message.
To workaround this problem, use multiple GET, PUT, and DELETE commands, or find a 3rd-party FTP client.
Read article here.
Lesson learnt. 