Not getting any GPS info from End Node

Hello, I have my Rak-based gateway connected to chirpstack and also my oyster lorawan tracker connected in the applications. However, as you can see in the pictures attached below, I am not seeing any relevant uplink data (such as the correct longitude and latitude). It’s only showing the latitude and longitude that set in the gateway settings. We are wondering why we’re not seeing the correct Longitude and longitude with that tracking devices that are connected to chirpstack.

Thanks for your help, we greatly appreciate it!