Read this post for actual info about latest game versions.UE 4.18
Work: textures, static meshes, animations (several)
Don't work: skeletal meshes, animations (other)
skeletal mesh error:SerializeBulkArray <- FMultisizeIndexContainer<< <- FStaticLODModel4::SerializeRenderItem_Legacy <- FStaticLODModel4::SerializeRenderItem <- TArray::Serialize:0/786689 <- USkeletalMesh4::Serialize <- LoadObject:SkeletalMesh4'PC0000_00.PC0000_00', pos=10BB4, ver=514/0, game=ue4.18 <- UObject::EndLoad <- LoadWholePackage:PC0000_00 <- CUmodelApp::ShowPackageUI <- CUmodelApp::ProcessKey:key=6F, down=1 <- VisualizerLoop <- Main:umodel_build=1149
animation error:UnPackage::SerializeFName:pos=0002FD80 <- TArray::Serialize:2/894 <- TArray::Serialize:1/10 <- FSmartNameMapping<< <- TArray::Serialize:0/1 <- SmartNames <- USkeleton::Serialize <- LoadObject:Skeleton'PC0000_00_Skeleton.PC0000_00_Skeleton', pos=2FD80, ver=514/0, game=ue4.18 <- UObject::EndLoad <- LoadWholePackage:N_Walk01_0_R180 <- CUmodelApp::ShowPackageUI <- CUmodelApp::ProcessKey:key=6F, down=1 <- VisualizerLoop <- Main:umodel_build=1149