tsNetCustomSync: NLST command does not return updated results

[trevix]

Hello boys. More struggling under this sky.

Using an FTP client, I uploaded a few files to my web provider.
I then used, in LC10RC1, tsNetCustomSync to get a list of the uploaded files, using the "NLST" command in the pRequest.
Everything works fine.

I then deleted the files using the FTP client.
Now, most of the time that I run tsNetCustomSync to get a list of files, it returns the same list, even tough the files are not anymore on my web space and should return empty (I had the confirm that the files are not there using two different FTP clients).

What gives?
I tried to set a "no_reuse" to true, in the settings of tsNetCustomSync, but the command is not recognized by the FTP server (Aruba).
I there some way to clear what appears to be "cached" data?
Is this LC or the FTP server?

Thanks for the help
Trevix