contact type switch not readed

[fionut]

Hi
I have installed Domoticzon RPI 2 . I also connected an input signal to GPIO12 ; the problem is Domoticz wont read the status of this pin at all! This pin is exported as input, rising edge; and seen in Domoticz as a contact, a contact which is allways closed no matter what voltage i put on RPI pin

The only clue I have is that when I look in Domoticz log I get some errors
EventSystem: Lua script did not return a commandArray

Should i select something for sub/slave device when editing the contact under Switches tab?