Unable to open LookDev window along with NullReferenceException error is thrown on clicking "Open in LookDev window" button in the Inspector.

Steps to repro:
1. Create a new URP project.
2. Project Window > Click on "" > LookDev > Environment Library.
3. Select Environment Library > Inspector.
4. Click on "Open in LookDev window".
5. Repeat step 4.

Actual Result:
NullReferenceException error is thrown in the console.
Unable to open LookDev window.

Expected Result:
Lookdev window opens up without any error.

Reproducible in:
2020.2.0b7, 2020.1.10f1, 2020.1.0b6 with Package Version 10.0.0-preview.26, 9.0.0-preview.55, 8.2.0, 8.1.0.

Environment:
Occurring on Windows 10 & Mac 10.15.

Stacktrace:
Exception: LookDev is not supported by this Scriptable Render Pipeline: UnityEngine.Rendering.Universal.UniversalRenderPipeline
UnityEditor.Rendering.LookDev.LookDev.WaitingSRPReloadForConfiguringRenderer (System.Int32 maxAttempt, System.Boolean reloadWithTemporaryID, System.Int32 attemptNumber) (at library/packagecache/com.unity.render-pipelines.core@8.1.0/editor/lookdev/lookdev.cs:146)
UnityEditor.Rendering.LookDev.LookDev<>c__DisplayClass31_0.<WaitingSRPReloadForConfiguringRenderer>b__0 () (at library/packagecache/com.unity.render-pipelines.core@8.1.0/editor/lookdev/lookdev.cs:141)
UnityEditor.EditorApplication.Internal_CallDelayFunctions () (at <ee59ffdb2ee84322996931dbffc3a33c>:0)

NullReferenceException: Object reference not set to an instance of an object
UnityEditor.Rendering.LookDev.EnvironmentLibraryEditor+<>c__DisplayClass1_0.<CreateInspectorGUI>b__0 () (at library/packagecache/com.unity.render-pipelines.core@10.0.0-preview.30/editor/lookdev/environmentlibrary.cs:127)
UnityEngine.UIElements.Clickable.Invoke (UnityEngine.UIElements.EventBase evt) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.Clickable.ProcessUpEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.Vector2 localPosition, System.Int32 pointerId) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.Clickable.OnMouseUp (UnityEngine.UIElements.MouseUpEvent evt) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.EventCallbackFunctor`1[TEventType].Invoke (UnityEngine.UIElements.EventBase evt) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.EventCallbackRegistry.InvokeCallbacks (UnityEngine.UIElements.EventBase evt) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.CallbackEventHandler.HandleEvent (UnityEngine.UIElements.EventBase evt) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.CallbackEventHandler.HandleEventAtTargetPhase (UnityEngine.UIElements.EventBase evt) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.MouseCaptureDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.EventDispatcher.ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, System.Boolean imguiEventIsInitiallyUsed) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEventQueue () (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.EventDispatcher.OpenGate () (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.EventDispatcherGate.Dispose () (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at <17eda2bc62404501b9f55a9eba6f522e>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at <931b26b61f444e3485195721b0227b20>:0)