Trackmap, how to get multiple points


I’m trying to use the TrackMap to plot some data. I use InfluxDB to store data and my data is stored as follows:
measurement: geodata
Fields: latitude, longitude
Tags: DevEUI (This is a MAC address of the sensor sending lat and long).

I would like to plot each sensor based on the DevEUI but I cannot seem to get the query correct.
If I use the following query, I get all sensors plotted as one:
SELECT "latitude", "longitude" FROM "geodata" WHERE time >= now() - 12h

If I add a group by DevEUI, I get nothing in the map:
SELECT "latitude", "longitude" FROM "geodata" WHERE time >= now() - 12h GROUP BY "DevEUI"

Anyone got any good hints as to what I’m doing wrong?