diff --git a/Assets/UniGLTF/Runtime/SpringBoneJobs/FastSpringBoneBufferCombiner.cs b/Assets/UniGLTF/Runtime/SpringBoneJobs/FastSpringBoneBufferCombiner.cs
index a43d5b439..f22112b5e 100644
--- a/Assets/UniGLTF/Runtime/SpringBoneJobs/FastSpringBoneBufferCombiner.cs
+++ b/Assets/UniGLTF/Runtime/SpringBoneJobs/FastSpringBoneBufferCombiner.cs
@@ -57,7 +57,7 @@ namespace UniGLTF.SpringBoneJobs
                         // 削除するので skip
                         continue;
                     }
-                    buffer.BackupCurrentTails(combined.CurrentTails, logicsIndex);
+                    buffer.BackupCurrentTails(combined.CurrentTails, combined.NextTails, logicsIndex);
                     logicsIndex += buffer.Logics.Length;
                 }
             }
diff --git a/Assets/UniGLTF/Runtime/SpringBoneJobs/FastSpringBoneConbinedBuffer.cs b/Assets/UniGLTF/Runtime/SpringBoneJobs/FastSpringBoneConbinedBuffer.cs
index 0e597b70d..ae66220b6 100644
--- a/Assets/UniGLTF/Runtime/SpringBoneJobs/FastSpringBoneConbinedBuffer.cs
+++ b/Assets/UniGLTF/Runtime/SpringBoneJobs/FastSpringBoneConbinedBuffer.cs
@@ -148,7 +148,7 @@ namespace UniGLTF.SpringBoneJobs
                 }
 
                 // 速度の維持
-                buffer.RestoreCurrentTails(_currentTails, logicsOffset);
+                buffer.RestoreCurrentTails(_currentTails, _nextTails, logicsOffset);
 
                 handle = new LoadSpringsJob
                 {
diff --git a/Assets/UniGLTF/Runtime/SpringBoneJobs/InputPorts/FastSpringBoneBuffer.cs b/Assets/UniGLTF/Runtime/SpringBoneJobs/InputPorts/FastSpringBoneBuffer.cs
index f17b068f2..455e17dd6 100644
--- a/Assets/UniGLTF/Runtime/SpringBoneJobs/InputPorts/FastSpringBoneBuffer.cs
+++ b/Assets/UniGLTF/Runtime/SpringBoneJobs/InputPorts/FastSpringBoneBuffer.cs
@@ -23,6 +23,7 @@ namespace UniGLTF.SpringBoneJobs.InputPorts
         public NativeArray<BlittableCollider> Colliders { get; }
         public NativeArray<BlittableJointImmutable> Logics { get; }
         private NativeArray<Vector3> _currentTailsBackup;
+        private NativeArray<Vector3> _nextTailsBackup;
         public Transform[] Transforms { get; }
 
         /// <summary>
@@ -140,7 +141,7 @@ namespace UniGLTF.SpringBoneJobs.InputPorts
             }
         }
 
-        public void BackupCurrentTails(NativeArray<Vector3> currentTails, int offset)
+        public void BackupCurrentTails(NativeArray<Vector3> currentTails, NativeArray<Vector3> nextTails, int offset)
         {
             if (!Logics.IsCreated || Logics.Length == 0)
             {
@@ -150,14 +151,20 @@ namespace UniGLTF.SpringBoneJobs.InputPorts
             {
                 _currentTailsBackup = new(Logics.Length, Allocator.Persistent);
             }
+            if (!_nextTailsBackup.IsCreated)
+            {
+                _nextTailsBackup = new(Logics.Length, Allocator.Persistent);
+            }
             NativeArray<Vector3>.Copy(currentTails, offset, _currentTailsBackup, 0, Logics.Length);
+            NativeArray<Vector3>.Copy(nextTails, offset, _nextTailsBackup, 0, Logics.Length);
         }
 
-        public void RestoreCurrentTails(NativeArray<Vector3> currentTails, int offset)
+        public void RestoreCurrentTails(NativeArray<Vector3> currentTails, NativeArray<Vector3> nextTails, int offset)
         {
             if (_currentTailsBackup.IsCreated)
             {
                 NativeArray<Vector3>.Copy(_currentTailsBackup, 0, currentTails, offset, Logics.Length);
+                NativeArray<Vector3>.Copy(_nextTailsBackup, 0, nextTails, offset, Logics.Length);
             }
             else
             {
@@ -177,6 +184,7 @@ namespace UniGLTF.SpringBoneJobs.InputPorts
             if (Colliders.IsCreated) Colliders.Dispose();
             if (Logics.IsCreated) Logics.Dispose();
             if (_currentTailsBackup.IsCreated) _currentTailsBackup.Dispose();
+            if (_nextTailsBackup.IsCreated) _nextTailsBackup.Dispose();
         }
     }
 }
\ No newline at end of file