diff --git a/Engine/Plugins/FX/Niagara/Source/NiagaraCore/Private/NiagaraCustomVersion.cpp b/Engine/Plugins/FX/Niagara/Source/NiagaraCore/Private/NiagaraCustomVersion.cpp
index a861705a356c..63c0594584a5 100644
--- a/Engine/Plugins/FX/Niagara/Source/NiagaraCore/Private/NiagaraCustomVersion.cpp
+++ b/Engine/Plugins/FX/Niagara/Source/NiagaraCore/Private/NiagaraCustomVersion.cpp
@@ -8,4 +8,4 @@ const FGuid FNiagaraCustomVersion::GUID(0xFCF57AFA, 0x50764283, 0xB9A9E658, 0xFF
 // Register the custom version with core
 FCustomVersionRegistration GRegisterNiagaraCustomVersion(FNiagaraCustomVersion::GUID, FNiagaraCustomVersion::LatestVersion, TEXT("NiagaraVer"));
 
-const FGuid FNiagaraCustomVersion::LatestScriptCompileVersion(0xD6750F29, 0x8A554BC2, 0xACB577F3, 0xC6BD12CD);
+const FGuid FNiagaraCustomVersion::LatestScriptCompileVersion(0x99FA2658, 0xE7E24678, 0xBC4E3F17, 0x603EE37F);
diff --git a/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Private/NiagaraHlslTranslator.cpp b/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Private/NiagaraHlslTranslator.cpp
index d0f7d8406651..c06291759012 100644
--- a/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Private/NiagaraHlslTranslator.cpp
+++ b/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Private/NiagaraHlslTranslator.cpp
@@ -1772,9 +1772,16 @@ void FHlslNiagaraTranslator::DefineDataInterfaceHLSL(FString& InHlslOutput)
 			DIInstanceInfo.DIClassName = Info.Type.GetClass()->GetName();
 
 			// Build a list of function instances that will be generated for this DI.
+			TSet<FNiagaraFunctionSignature> SeenFunctions;
 			DIInstanceInfo.GeneratedFunctions.Reserve(Info.RegisteredFunctions.Num());
 			for (const FNiagaraFunctionSignature& OriginalSig : Info.RegisteredFunctions)
 			{
+				if (SeenFunctions.Contains(OriginalSig))
+				{
+					continue;
+				}
+				SeenFunctions.Add(OriginalSig);
+
 				if (!OriginalSig.bSupportsGPU)
 				{
 					Error(FText::Format(LOCTEXT("GPUDataInterfaceFunctionNotSupported", "DataInterface {0} function {1} cannot run on the GPU."), FText::FromName(Info.Type.GetFName()), FText::FromName(OriginalSig.Name)), nullptr, nullptr);