diff --git a/AssetStudioUtility/ModelConverter.cs b/AssetStudioUtility/ModelConverter.cs
index b9a4320..ddb0c57 100644
--- a/AssetStudioUtility/ModelConverter.cs
+++ b/AssetStudioUtility/ModelConverter.cs
@@ -884,7 +884,7 @@ namespace AssetStudio
                     var m_ClipBindingConstant = animationClip.m_ClipBindingConstant ?? m_Clip.ConvertValueArrayToGenericBinding();
                     var m_ACLClip = m_Clip.m_ACLClip;
                     var aclCount = m_ACLClip.m_CurveCount;
-                    if (m_ACLClip.m_CurveCount != 0 && Game.Name != "SR_CB2" && Game.Name != "SR_CB3")
+                    if (m_ACLClip.IsSet && Game.Name != "SR_CB2" && Game.Name != "SR_CB3")
                     {
                         m_ACLClip.Process(out var values, out var times);
                         for (int frameIndex = 0; frameIndex < times.Length; frameIndex++)
@@ -908,7 +908,7 @@ namespace AssetStudio
                             var index = frame.keyList[curveIndex].index;
                             if (Game.Name != "SR_CB2" && Game.Name != "SR_CB3")
                                 index += (int)aclCount;
-                            ReadCurveData(iAnim, m_ClipBindingConstant, (int)index, frame.time, streamedValues, 0, ref curveIndex);
+                            ReadCurveData(iAnim, m_ClipBindingConstant, index, frame.time, streamedValues, 0, ref curveIndex);
                         }
                     }
                     var m_DenseClip = m_Clip.m_DenseClip;
@@ -925,7 +925,7 @@ namespace AssetStudio
                             ReadCurveData(iAnim, m_ClipBindingConstant, (int)index, time, m_DenseClip.m_SampleArray, (int)frameOffset, ref curveIndex);
                         }
                     }
-                    if (m_ACLClip.m_CurveCount != 0 && Game.Name == "SR_CB2" && Game.Name != "SR_CB3")
+                    if (m_ACLClip.IsSet && (Game.Name == "SR_CB2" || Game.Name == "SR_CB3"))
                     {
                         m_ACLClip.ProcessSR(out var values, out var times);
                         for (int frameIndex = 0; frameIndex < times.Length; frameIndex++)