Traffic signs along a route

Hi, is there any possibility to get all traffic signs along a route?
I tried :
indicating in fields={route{properties{id,speedLimits{value,unit,type},trafficSigns{signType,chainage,unit},address{countryName,countryCode,municipality,roadName,roadNumbers}}}}

but the returned array for trafficsigns is always empty
Thanks in advance and regards

We are investigating the issue and will let you know once we find a solution.

In the meantime, can you also send us the coordinates where you are checking the signs?