Enabling plugin support cause whips to stop working

[Annuncjo]

Hi,
I have this problem where when after patching terraria with the plugin support box checked (even when in the next window no plugins were selected) the whips (summoner weapon) stops working. Character animation still plays, i can hear the whizz but not the crack that the whip should make, and the whip animation is also nowhere to be seen (and it doesn't attack mobs or even grass).
Also it may matter that when using the patcher i got the error saying the PluginLoader.XNA.dll file i missing, so i manually copied it over to terraria folder and now the game launch but i run into the whip problem.
When i leave the plugin support box unchecked without changing any other options game works fine.