make the virtual hand anim instance proxy safer

Source/SenseGlove/Private/SenseGlove/Animation/SGVirtualHandAnimInstanceProxy.cpp

@@ -50,20 +50,29 @@
 #include "SGLog/SGLog.h"
 
 FSGVirtualHandAnimInstanceProxy::FSGVirtualHandAnimInstanceProxy()
-    : FAnimInstanceProxy()
+    : FAnimInstanceProxy{}
 {
-    bIsVirtualHandVisible = false;
     VirtualHand = nullptr;
     HandMeshAsset = nullptr;
     HandSkeleton = nullptr;
+
+    bIsVirtualHandVisible = false;
     bMarkRenderStateDirty = false;
 
     bShouldAnimationApplyBoneLocation = false;
 }
 
 FSGVirtualHandAnimInstanceProxy::FSGVirtualHandAnimInstanceProxy(UAnimInstance* Instance)
-    : FAnimInstanceProxy(Instance)
+    : FAnimInstanceProxy{Instance}
 {
+    VirtualHand = nullptr;
+    HandMeshAsset = nullptr;
+    HandSkeleton = nullptr;
+
+    bIsVirtualHandVisible = false;
+    bMarkRenderStateDirty = false;
+
+    bShouldAnimationApplyBoneLocation = false;
 }
 
 void FSGVirtualHandAnimInstanceProxy::PreEvaluateAnimation(UAnimInstance* InAnimInstance)
@@ -200,7 +209,6 @@ bool FSGVirtualHandAnimInstanceProxy::Evaluate(FPoseContext& Output)
         }
     }
 
-
     return true;
 }
 

Source/SenseGlove/Public/SenseGlove/Animation/SGVirtualHandAnimInstanceProxy.h

@@ -55,10 +55,16 @@ struct SENSEGLOVE_API FSGVirtualHandAnimInstanceProxy : public FAnimInstanceProx
     GENERATED_USTRUCT_BODY()
 
 private:
-    bool bIsVirtualHandVisible;
+    UPROPERTY(Transient)
     USGVirtualHandComponent* VirtualHand;
+
+    UPROPERTY(Transient)
     USkeletalMesh* HandMeshAsset;
+
+    UPROPERTY(Transient)
     USkeleton* HandSkeleton;
+
+    bool bIsVirtualHandVisible;
     bool bMarkRenderStateDirty;
 
     FXRMotionControllerData MotionControllerData;