InfluxDB timeseries data with json location issue

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Hi,
I'm struggling to get any data to show up in the map. I've tried many different suggestions from many threads, but so far, no joy. I don't even get an error message to point me in the right direction.
Here is my current query config:

data is successfully being retrieved:

The location config:

The endpoint is my own server - the inspector shows that it's successfully retrieving:

[
	{
		"key": "1",
		"latitude": 48.179554,
		"longitude": 11.595701,
		"name": "Windowsill"
	},
	{
		"key": "0",
		"latitude": 48.179596,
		"longitude": 11.5955515,
		"name": "Desk"
	}
]