No, support has been useless thus far. They said the issue happens on the Plus when users migrate their systems from an older Vera. In my case, I went from and Edge to a Plus. They said that when that happens, another device takes the normally reserved ID spot (3, IIRC) for the zigbee radio. Thus, the add new device wizard can't initiate the ZB radio. They provided me with a static URL that put the radio (device id 197 on mine) into pairing mode. That worked - bringing up the blue 'add device now' bar - but after pairing the valve, my VP went into a terminal boot loop and wouldn't recover. I eventually managed to make it to the ZB settings (which took forever due to the constant restarts) and reset the ZB radio. That stopped the restarts, but it also cleared out the valve.
That's a long way of saying, no, it doesn't work. Support said that a future firmware release will address the migration issue for people who followed the same upgrade path as I have, but until then, I guess my VP is neutered.