With the new TS3 Client version, binding functions to events in Lua scripts no longer works.

Example:

Code:
function testfunc()
	ts3.printMessage(ts3.getCurrentServerConnectionHandlerID(),  "DEBUG MESSAGE - testfunc" , 1)
end

local registeredEvents = {
	createMenus = testfunc,
	onMenuItemEvent = channelMover.onMenuItemEvent,
}
Tested with:
3.0.16 x64 on Windows7 does work
3.0.17 x64 on Windows7 does not work