diff --git a/Source/glTFRuntime/Private/glTFRuntimeParserSkeletalMeshes.cpp b/Source/glTFRuntime/Private/glTFRuntimeParserSkeletalMeshes.cpp
index 8b8fc473..a64ff03a 100644
--- a/Source/glTFRuntime/Private/glTFRuntimeParserSkeletalMeshes.cpp
+++ b/Source/glTFRuntime/Private/glTFRuntimeParserSkeletalMeshes.cpp
@@ -1808,6 +1808,10 @@ UAnimSequence* FglTFRuntimeParser::LoadSkeletalAnimation(USkeletalMesh * Skeleta
 	FStructProperty* StructProperty = CastField<FStructProperty>(UAnimDataModel::StaticClass()->FindPropertyByName(TEXT("FrameRate")));
 	FFrameRate* FrameRatePtr = StructProperty->ContainerPtrToValuePtr<FFrameRate>(AnimSequence->GetDataModel());
 	*FrameRatePtr = FrameRate;
+#else
+	PRAGMA_DISABLE_DEPRECATION_WARNINGS
+	AnimSequence->SequenceLength = Duration;
+	PRAGMA_ENABLE_DEPRECATION_WARNINGS
 #endif
 #else
 	AnimSequence->SetRawNumberOfFrame(NumFrames);
@@ -2067,6 +2071,9 @@ UAnimSequence* FglTFRuntimeParser::LoadSkeletalAnimation(USkeletalMesh * Skeleta
 #endif
 #else
 	AnimSequence->CompressedData.CompressedDataStructure = MakeUnique<FUECompressedAnimData>();
+#if ENGINE_MAJOR_VERSION > 4
+	AnimSequence->CompressedData.CompressedDataStructure->CompressedNumberOfKeys = NumFrames;
+#endif
 	AnimSequence->CompressedData.BoneCompressionCodec = CompressionCodec;
 	AnimSequence->CompressedData.CurveCompressionCodec = NewObject<UAnimCurveCompressionCodec_CompressedRichCurve>();
 	AnimSequence->PostLoad();