diff --git a/OptiScaler/inputs/NVNGX_DLSS_Dx12.cpp b/OptiScaler/inputs/NVNGX_DLSS_Dx12.cpp
index 1f723f1..ef5ec77 100644
--- a/OptiScaler/inputs/NVNGX_DLSS_Dx12.cpp
+++ b/OptiScaler/inputs/NVNGX_DLSS_Dx12.cpp
@@ -184,6 +184,8 @@ NVSDK_NGX_API NVSDK_NGX_Result NVSDK_NGX_D3D12_Init_Ext(unsigned long long InApp
 
             if (result == NVSDK_NGX_Result_Success)
                 NVNGXProxy::SetDx12Inited(true);
+            else if (State::Instance().dlssExternalBackend)
+                return result;
         }
         else
         {
@@ -254,6 +256,8 @@ NVSDK_NGX_API NVSDK_NGX_Result NVSDK_NGX_D3D12_Init(unsigned long long InApplica
 
             if (result == NVSDK_NGX_Result_Success)
                 NVNGXProxy::SetDx12Inited(true);
+            else if (State::Instance().dlssExternalBackend)
+                return result;
         }
     }