Hi! Have s strange issue - one of the relays in one of my QRI modules seems to have got "stuck". It remains on regardless of what I do - Cortex thinks the light is off, but in actual fact it is on. Tried in sequence: reset the QRI (red button), turn off power to the idratek modules, stop and start network and exit and restart Cortex all to no avail. Is it possible for the relay to have physically got "stuck"? Is there anything else I can do?