Google Maps extended & Geolocation(GPS) Tracker - Map Marker

Hello, i am using Google maps extended and with success i can see my route (Geojson) and from database a list of markers. using the actions of the map for that.
I have the plugin for GPS also, and want to put a new marker on the Map with GPS position. using add marker and after convert the lat long coordinates to address, it gives the message that GPS is with success and goes to the GPS point position (zoom) but marker doesn’t appear.
Am i missing something?

I just solved putting a calculated formula on gps updated event
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