RAK7289 GPS with TTN ?


I have been running since more than a year some Rakwireless lora gw (ones based on PI hats) with great success and stability. The only “issue” was that gws were unable to report GPS data in a way TTN could use it to update gw location. I see it well sending GPS data in gw pinq every 30S at TTN server but TTN doesn’t care about it.
Now I have putted in production a RAK7280 gateway that is a very nice product but it has exact same issue ! is there a way to get that working properly ? or problem is on TTN side ?

Thanks for clarification