Hello everybody, this issue happened to me after creating a BP_Character to place in the game as AI.
I had no clue of which could have been the origin of this problem until i’ve performed some “Builds” action, the Landscape build in particular. Of course Landscape build gave me a more detailed error and i’ve found this :
LS_AI_GuardBP_4_C_UAID_04421A985BFF2A9E01_1544327402 Static mesh actor has NULL StaticMesh property
I’ve clicked in the “docs” button inside the log window and i’ve found this could be the only solution. Your case may be different a bit, but i believe that building some of the Levels could give you more informations about the actor causing this.
I really don’t know what to think about the connection between a Static Mesh Actor and those characters tho.
[Static Mesh Actor] : Static Mesh Actor has NULL StaticMesh property
This warning is caused when there is a Static Mesh Actor in a level with a NULL StaticMesh property. This can be a problem because the Actor exists and is using memory, but does not have a Static Mesh to actually draw. This warning is usually the result of creating a StaticMesh Actor without first selecting a StaticMesh in the generic browser. This warning can be fixed by first selecting a Static Mesh in the generic browser and then going to the StaticMesh Actor’s Property Window->StaticMeshActor Category->StaticMeshComponent->StaticMeshComponent Category to set the ‘StaticMesh’ Property.