Strange behaviour after landing

[Zillie]

I am running Radarbox 3D-4.03 and i noticed a very strange behaviour after landing of aircraft. At my location and with an outside antenna, i can follow aircraft down to the runway of EDDW (Bremen, Germany). In 3D view i am on the runway already and sometimes on the taxiway. Radarbox gives me the correct altitude of between 20 and zero feet and Status reads "On ground" as it should be. After some minutes, suddenly the altitude changes to 35025 feet and Status reads "Decending" (just happened to DLH348 who landed here). After a vew more minutes it times out and disappears.
Any explanation for that?

Harry

[DaveReid]

I am running Radarbox 3D-4.03 and i noticed a very strange behaviour after landing of aircraft. At my location and with an outside antenna, i can follow aircraft down to the runway of EDDW (Bremen, Germany). In 3D view i am on the runway already and sometimes on the taxiway. Radarbox gives me the correct altitude of between 20 and zero feet and Status reads "On ground" as it should be. After some minutes, suddenly the altitude changes to 35025 feet and Status reads "Decending" (just happened to DLH348 who landed here). After a vew more minutes it times out and disappears.
Any explanation for that?

Sounds very much like an instance of this phenomenon: www.airnavsystems.com/forum/index.php?topic=4916.msg49768#msg49768

If so, it's a known bug and AirNav are investigating it.