Fixed broken rendering when duplicating a camera while the Rendering Debugger is opened.

com.unity.render-pipelines.high-definition/CHANGELOG.md

@@ -59,6 +59,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed Crash issue when adding an area light on its own.
 - Fixed rendertarget ColorMask in Forward with virtual texturing and transparent motion vectors.
 - Fixed light unit conversion after changing mid gray value.
+- Fixed broken rendering when duplicating a camera while the Rendering Debugger is opened.
 
 ### Changed
 - Use RayTracingAccelerationStructure.CullInstances to filter Renderers and populate the acceleration structure with ray tracing instances for improved CPU performance on the main thread.

com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/Camera/HDAdditionalCameraData.cs

@@ -690,6 +690,11 @@ void OnEnable()
             m_Camera.allowMSAA = false; // We don't use this option in HD (it is legacy MSAA) and it produce a warning in the inspector UI if we let it
             m_Camera.allowHDR = false;
 
+            // By doing that, we force the update of frame settings debug data once. Otherwise, when the Rendering Debugger is opened,
+            // Wrong data is registered to the undo system because it did not get the chance to be updated once.
+            FrameSettings dummy = new FrameSettings();
+            FrameSettingsHistory.AggregateFrameSettings(ref dummy, m_Camera, this, HDRenderPipeline.currentAsset, null);
+
             RegisterDebug();
 
 #if UNITY_EDITOR