Using ROS subscribers in Unreal Engine

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Hi, Has anyone had any experience with using ROS subscribers inside the Unreal Engine? My Unreal game will crash as soon as ros::NodeHandle.spinOnce() is called.

My Header: TestingSubs.h

#pragma once
#include <ros.h>
#include <time.h>
#include <baxter_core_msgs/EndpointState.h>
#include "Components/ActorComponent.h"
#include "TestingSubs.generated.h"

UCLASS( ClassGroup=(Custom), meta=(BlueprintSpawnableComponent) )
class WALLCLIMBING_API UTestingSubs : public UActorComponent
{
    GENERATED_BODY()

public: 
    // Sets default values for this component's properties
    UTestingSubs();

    // Called when the game starts
    virtual void BeginPlay() override;

    // Called every frame
    virtual void TickComponent( float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction ) override;

    void StartUp();

    void MyCallback(const baxter_core_msgs::EndpointState& msg);
    char *ros_master = "192.168.1.120";
    ros::NodeHandle MyNode;
};

My cpp: TestingSubs.cpp

#include "WallClimbing.h"
#include "TestingSubs.h"

// Sets default values for this component's properties
UTestingSubs::UTestingSubs()
{
    // Set this component to be initialized when the game starts, and to be ticked every frame.  You can turn these features
    // off to improve performance if you don't need them.
    bWantsBeginPlay = true;
    PrimaryComponentTick.bCanEverTick = true;
}


// Called when the game starts
void UTestingSubs::BeginPlay()
{
    Super::BeginPlay();
    StartUp();
}


// Called every frame
void UTestingSubs::TickComponent( float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction )
{
    Super::TickComponent( DeltaTime, TickType, ThisTickFunction );
    MyNode.spinOnce();
}

void UTestingSubs::MyCallback(const baxter_core_msgs::EndpointState& msg)
{
    UE_LOG(LogTemp, Warning, TEXT("Callback was called"));
}

void Callback(const baxter_core_msgs::EndpointState& msg)
{
    UE_LOG(LogTemp, Warning, TEXT("Callback was called"));
}

void UTestingSubs::StartUp()
{
    MyNode.initNode(ros_master);
    ros::Subscriber< baxter_core_msgs::EndpointState > Mysub("/robot/limb/right/endpoint_state/", &Callback);
    MyNode.subscribe(Mysub);
}

Any suggestions of how I could subscribe from within Unreal would be greatly appreciated.

**Edit: image of debug added.