List error, yet v2.0 does seem to work ? Odd..

[bigstar]

It would be extremely helpful to see a copy of the ftp session log for FlashFXP v2.0.

Also you may need to manually add FlashFXP v3.4 to the allow list for your firewall.

Some software firewalls have problems when you have multiple versions of a application with the same filename. So you might try renaming FlashFXP.exe to something else.