Reactor Expressions/Variables Not Updating

Looks like when I test the Device Action ‘SendData’, I get the following error popup:

urn:micasaverde-com:serviceId:ZWaveNetwork1/SendData( Node="12", Data="112 4 3 1 3" )

400 Bad Request undefined

Previously this worked fine with straight ‘run lua’:

luup.call_action(‘urn:micasaverde-com:serviceId:ZWaveNetwork1’,‘SendData’,{Node=‘12’,Data=‘112 4 3 1 3’},1)

Am I missing something obvious?