H7130 LAN API - Not controlling Thermostat Toggle

I'm finding that the thermostatToggle capability is not actually controlling my H7130. When I send the api call it is successful, not not setting on my heater. If I run the get device state for my heater, I see this:

   {
            "type": "devices.capabilities.toggle",
            "instance": "thermostatToggle",
            "state": {
                "value": ""
            }
        },

It looks like it's returning a string, and not a bit.