[atlas] Some of the UDM results are unavailable

Dear community, I am trying to access some of the the UDMs. I find some problems in getting results for some probes in some UDM. For example, I can access the UDM [1] and get measurements from all the probes. Whereas when I try to filter the same UDM using probe ID, the result is not available for some particular probes [2]. But it is available for some others [3] in the same UDM. [1] https://atlas.ripe.net/api/v1/measurement/1037214/result/ [2] https://atlas.ripe.net/api/v1/measurement/1037214/result/?prb_id=2330 [3] https://atlas.ripe.net/api/v1/measurement/1037214/result/?prb_id=12781 Kind Regards, Steffie