"Returned normal with incorrect length (0.000000)"???

Legacy UDK Programming and UnrealScript
1

I occasionally get this error/warning showing in my logs:


Log: ZELC: Component 'ColdWoodBurner.StaticMeshes.wood_burner' with Owner 'No_Detailed_Info_Specified' returned normal with incorrect length (0.000000).[/log]

Does anyone know what might be causing this, and/or where to look?
2

I have the same problem and I have no idea what is:

[0121.93] Log: ZELC: Component ‘st_ciudad.calles.Canal_puente’ with Owner ‘st_ciudad.calles.Canal_puente’ returned normal with incorrect length (0.000000). ChkActor: Avatar_0 (Avatar uedpieisla.TheWorld:PersistentLevel.Avatar_0)

when the player walks over a bridge in the city (“Avatar” is my player class). Only with the player. With the NPC’s there are no error. And only walking on that mesh, which is using the same material than others meshes.