diff --git a/com.unity.render-pipelines.high-definition/Runtime/PostProcessing/PostProcessSystem.cs b/com.unity.render-pipelines.high-definition/Runtime/PostProcessing/PostProcessSystem.cs
index 9f61527ced3..ed03ad9ab08 100644
--- a/com.unity.render-pipelines.high-definition/Runtime/PostProcessing/PostProcessSystem.cs
+++ b/com.unity.render-pipelines.high-definition/Runtime/PostProcessing/PostProcessSystem.cs
@@ -1383,6 +1383,7 @@ void PrepareExposureCurveData(out float min, out float max)
                     filterMode = FilterMode.Bilinear,
                     wrapMode = TextureWrapMode.Clamp
                 };
+                m_ExposureCurveTexture.hideFlags = HideFlags.HideAndDontSave;
             }
 
             bool minCurveHasPoints = minCurve.length > 0;
diff --git a/com.unity.render-pipelines.high-definition/Runtime/Sky/HDRISky/HDRISkyRenderer.cs b/com.unity.render-pipelines.high-definition/Runtime/Sky/HDRISky/HDRISkyRenderer.cs
index b95d0cc8f3e..7d26e2bc9d3 100644
--- a/com.unity.render-pipelines.high-definition/Runtime/Sky/HDRISky/HDRISkyRenderer.cs
+++ b/com.unity.render-pipelines.high-definition/Runtime/Sky/HDRISky/HDRISkyRenderer.cs
@@ -1,3 +1,7 @@
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
+
 namespace UnityEngine.Rendering.HighDefinition
 {
     class HDRISkyRenderer : SkyRenderer
@@ -149,8 +153,14 @@ public override void RenderSky(BuiltinSkyParameters builtinParams, bool renderFo
 
                 m_SkyHDRIMaterial.SetVector(HDShaderIDs._FlowmapParam, flowmapParam);
 
-                scrollFactor += hdriSky.scrollSpeed.value * (Time.time - lastTime) * 0.01f;
-                lastTime = Time.time;
+#if UNITY_EDITOR
+                // Time.time is not always updated in editor
+                float time = (float)EditorApplication.timeSinceStartup;
+#else
+                float time = Time.time;
+#endif
+                scrollFactor += hdriSky.scrollSpeed.value * (time - lastTime) * 0.01f;
+                lastTime = time;
             }
             else
                 m_SkyHDRIMaterial.DisableKeyword("SKY_MOTION");