diff --git a/examples/jsm/inspector/Inspector.js b/examples/jsm/inspector/Inspector.js
index 1e24605e794bf3..7206722701b1f6 100644
--- a/examples/jsm/inspector/Inspector.js
+++ b/examples/jsm/inspector/Inspector.js
@@ -490,9 +490,9 @@ class Inspector extends RendererInspector {
 
 	resolveFrame( frame ) {
 
-		const nextFrame = this.getFrameById( frame.frameId + 1 );
+		const previousFrame = this.getFrameById( frame.frameId - 1 );
 
-		if ( ! nextFrame ) return;
+		if ( ! previousFrame ) return;
 
 		frame.cpu = 0;
 		frame.gpu = 0;
@@ -510,9 +510,9 @@ class Inspector extends RendererInspector {
 
 		}
 
-		// improve stats using next frame
+		// improve stats using previous frame
 
-		frame.deltaTime = nextFrame.startTime - frame.startTime;
+		frame.deltaTime = frame.startTime - previousFrame.startTime;
 		frame.miscellaneous = frame.deltaTime - frame.total;
 
 		if ( frame.miscellaneous < 0 ) {
diff --git a/examples/jsm/inspector/RendererInspector.js b/examples/jsm/inspector/RendererInspector.js
index dbb6f4215d2ecb..0f4bf34c384e1a 100644
--- a/examples/jsm/inspector/RendererInspector.js
+++ b/examples/jsm/inspector/RendererInspector.js
@@ -100,6 +100,8 @@ export class RendererInspector extends InspectorBase {
 
 	begin() {
 
+		super.begin();
+
 		this.currentFrame = this._createFrame();
 		this.currentRender = this.currentFrame;
 		this.currentNodes = [];
@@ -108,6 +110,8 @@ export class RendererInspector extends InspectorBase {
 
 	finish() {
 
+		super.finish();
+
 		const now = performance.now();
 
 		const frame = this.currentFrame;
@@ -368,9 +372,9 @@ export class RendererInspector extends InspectorBase {
 
 						}
 
-						const nextFrame = this.getFrameById( frame.frameId + 1 );
+						const previousFrame = this.getFrameById( frame.frameId - 1 );
 
-						if ( nextFrame === null ) continue;
+						if ( previousFrame === null ) continue;
 
 						if ( frame.resolvedCompute === false ) {
 
@@ -453,6 +457,8 @@ export class RendererInspector extends InspectorBase {
 
 	inspect( node ) {
 
+		if ( this.enabled === false ) return;
+
 		const currentNodes = this.currentNodes;
 
 		if ( currentNodes !== null ) {
diff --git a/examples/jsm/lighting/LightProbeGrid.js b/examples/jsm/lighting/LightProbeGrid.js
index 884a11b7585ef6..6bd6cf7b066fb7 100644
--- a/examples/jsm/lighting/LightProbeGrid.js
+++ b/examples/jsm/lighting/LightProbeGrid.js
@@ -457,6 +457,10 @@ class LightProbeGrid extends Light {
 
 		const { cubemapSize = 8, near = 0.1, far = 100, bounces = 0, sampleCount = 512 } = options;
 
+		const currentInspectorEnabled = renderer.inspector.enabled;
+
+		renderer.inspector.enabled = false;
+
 		this._ensureTextures();
 		this.updateBoundingBox();
 
@@ -603,6 +607,8 @@ class LightProbeGrid extends Light {
 
 			this.visible = true;
 
+			renderer.inspector.enabled = currentInspectorEnabled;
+
 		}
 
 	}
diff --git a/src/nodes/core/ContextNode.js b/src/nodes/core/ContextNode.js
index 149b40deb8e5b7..0bee75f01ecf45 100644
--- a/src/nodes/core/ContextNode.js
+++ b/src/nodes/core/ContextNode.js
@@ -123,11 +123,17 @@ class ContextNode extends Node {
 
 	analyze( builder ) {
 
-		const previousContext = builder.addContext( this.value );
+		const usageCount = builder.increaseUsage( this );
 
-		this.node.build( builder );
+		if ( usageCount === 1 ) {
 
-		builder.setContext( previousContext );
+			const previousContext = builder.addContext( this.value );
+
+			this.node.build( builder, this );
+
+			builder.setContext( previousContext );
+
+		}
 
 	}
 
@@ -135,10 +141,12 @@ class ContextNode extends Node {
 
 		const previousContext = builder.addContext( this.value );
 
-		this.node.build( builder );
+		const node = this.node.build( builder );
 
 		builder.setContext( previousContext );
 
+		return node;
+
 	}
 
 	generate( builder, output ) {
diff --git a/src/nodes/core/MRTNode.js b/src/nodes/core/MRTNode.js
index eaf54b6bcd4f9e..f09554b926d671 100644
--- a/src/nodes/core/MRTNode.js
+++ b/src/nodes/core/MRTNode.js
@@ -2,6 +2,7 @@ import OutputStructNode from './OutputStructNode.js';
 import { nodeProxy } from '../tsl/TSLBase.js';
 import { MaterialBlending, NoBlending } from '../../constants.js';
 import BlendMode from '../../renderers/common/BlendMode.js';
+import Color4 from '../../renderers/common/Color4.js';
 
 // Predefined blend modes for MRT nodes.
 const _noBlending = /**@__PURE__*/ new BlendMode( NoBlending );
@@ -78,6 +79,13 @@ class MRTNode extends OutputStructNode {
 			output: _materialBlending
 		};
 
+		/**
+		 * A dictionary storing the clear colors for each output.
+		 *
+		 * @type {Object<string, Color4>}
+		 */
+		this.clearColors = {};
+
 		/**
 		 * This flag can be used for type testing.
 		 *
@@ -116,6 +124,38 @@ class MRTNode extends OutputStructNode {
 
 	}
 
+	/**
+	 * Sets the clear color for the given output name.
+	 *
+	 * @param {string} name - The name of the output.
+	 * @param {number|string|Color} color - The clear color.
+	 * @param {number} [alpha=1] - The clear alpha.
+	 * @return {MRTNode} The current MRT node.
+	 */
+	setClearColor( name, color, alpha = 1 ) {
+
+		const clearColor = this.clearColors[ name ] || ( this.clearColors[ name ] = new Color4() );
+
+		clearColor.set( color );
+		clearColor.a = alpha;
+
+		return this;
+
+	}
+
+	/**
+	 * Returns the clear color for the given output name.
+	 *
+	 * @param {string} name - The name of the output.
+	 * @return {?Color4} The clear color. Returns `null` if no clear color is defined
+	 * which means the renderer's default clear policy is applied.
+	 */
+	getClearColor( name ) {
+
+		return this.clearColors[ name ] || null;
+
+	}
+
 	/**
 	 * Returns `true` if the MRT node has an output with the given name.
 	 *
@@ -149,10 +189,12 @@ class MRTNode extends OutputStructNode {
 	merge( mrtNode ) {
 
 		const outputs = { ...this.outputNodes, ...mrtNode.outputNodes };
-		const blendings = { ...this.blendModes, ...mrtNode.blendModes };
+		const blendModes = { ...this.blendModes, ...mrtNode.blendModes };
+		const clearColors = { ...this.clearColors, ...mrtNode.clearColors };
 
 		const mrtTarget = mrt( outputs );
-		mrtTarget.blendings = blendings;
+		mrtTarget.blendModes = blendModes;
+		mrtTarget.clearColors = clearColors;
 
 		return mrtTarget;
 
diff --git a/src/renderers/common/Animation.js b/src/renderers/common/Animation.js
index 2a0a0ed3476414..30272a85fce293 100644
--- a/src/renderers/common/Animation.js
+++ b/src/renderers/common/Animation.js
@@ -72,6 +72,12 @@ class Animation {
 
 			this._requestId = this._context.requestAnimationFrame( update );
 
+			if ( this.renderer._inspector.isRunning ) {
+
+				this.renderer._inspector.finish();
+
+			}
+
 			if ( this.info.autoReset === true ) this.info.reset();
 
 			this.nodes.nodeFrame.update();
@@ -80,9 +86,11 @@ class Animation {
 
 			this.renderer._inspector.begin();
 
-			if ( this._animationLoop !== null ) this._animationLoop( time, xrFrame );
+			if ( this._animationLoop !== null ) {
 
-			this.renderer._inspector.finish();
+				this._animationLoop( time, xrFrame );
+
+			}
 
 		};
 
@@ -95,6 +103,8 @@ class Animation {
 	 */
 	stop() {
 
+		if ( this.renderer._inspector.isRunning ) this.renderer._inspector.finish();
+
 		if ( this._context !== null ) this._context.cancelAnimationFrame( this._requestId );
 
 		this._requestId = null;
diff --git a/src/renderers/common/Color4.js b/src/renderers/common/Color4.js
index 6684e772ef0166..7ec67f26ab3608 100644
--- a/src/renderers/common/Color4.js
+++ b/src/renderers/common/Color4.js
@@ -72,6 +72,15 @@ class Color4 extends Color {
 
 	}
 
+	*[ Symbol.iterator ]() {
+
+		yield this.r;
+		yield this.g;
+		yield this.b;
+		yield this.a;
+
+	}
+
 }
 
 export default Color4;
diff --git a/src/renderers/common/InspectorBase.js b/src/renderers/common/InspectorBase.js
index 71c13d63dc7fa0..9ee396163c5195 100644
--- a/src/renderers/common/InspectorBase.js
+++ b/src/renderers/common/InspectorBase.js
@@ -29,6 +29,22 @@ class InspectorBase extends EventDispatcher {
 		 */
 		this.currentFrame = null;
 
+		/**
+		 * Indicates whether the inspector is running.
+		 *
+		 * @type {boolean}
+		 * @default false
+		 */
+		this.isRunning = false;
+
+		/**
+		 * Indicates whether the inspector is enabled.
+		 *
+		 * @type {boolean}
+		 * @default true
+		 */
+		this.enabled = true;
+
 	}
 
 	/**
@@ -75,12 +91,20 @@ class InspectorBase extends EventDispatcher {
 	/**
 	 * Called when a frame begins.
 	 */
-	begin() { }
+	begin() {
+
+		this.isRunning = true;
+
+	}
 
 	/**
 	 * Called when a frame ends.
 	 */
-	finish() { }
+	finish() {
+
+		this.isRunning = false;
+
+	}
 
 	/**
 	 * Inspects a node.
diff --git a/src/renderers/webgl-fallback/WebGLBackend.js b/src/renderers/webgl-fallback/WebGLBackend.js
index 67d730548b2e74..fe80a3258522fc 100644
--- a/src/renderers/webgl-fallback/WebGLBackend.js
+++ b/src/renderers/webgl-fallback/WebGLBackend.js
@@ -835,7 +835,13 @@ class WebGLBackend extends Backend {
 
 					for ( let i = 0; i < descriptor.textures.length; i ++ ) {
 
-						if ( i === 0 ) {
+						const mrtClearColor = descriptor.mrt ? descriptor.mrt.getClearColor( descriptor.textures[ i ].name ) : null;
+
+						if ( mrtClearColor !== null ) {
+
+							gl.clearBufferfv( gl.COLOR, i, [ mrtClearColor.r, mrtClearColor.g, mrtClearColor.b, mrtClearColor.a ] );
+
+						} else if ( i === 0 ) {
 
 							gl.clearBufferfv( gl.COLOR, i, [ clearColor.r, clearColor.g, clearColor.b, clearColor.a ] );
 
diff --git a/src/renderers/webgl-fallback/utils/WebGLTimestampQueryPool.js b/src/renderers/webgl-fallback/utils/WebGLTimestampQueryPool.js
index 96973bc28a3ec4..73a0fbee26e0ec 100644
--- a/src/renderers/webgl-fallback/utils/WebGLTimestampQueryPool.js
+++ b/src/renderers/webgl-fallback/utils/WebGLTimestampQueryPool.js
@@ -1,4 +1,4 @@
-import { error, warnOnce, warn } from '../../../utils.js';
+import { error, warn } from '../../../utils.js';
 import TimestampQueryPool from '../../common/TimestampQueryPool.js';
 
 /**
@@ -58,11 +58,14 @@ class WebGLTimestampQueryPool extends TimestampQueryPool {
 
 		if ( ! this.trackTimestamp ) return null;
 
-		// Check if we have enough space for a new query pair
 		if ( this.currentQueryIndex + 2 > this.maxQueries ) {
 
-			warnOnce( `WebGLTimestampQueryPool [${ this.type }]: Maximum number of queries exceeded, when using trackTimestamp it is necessary to resolves the queries via renderer.resolveTimestampsAsync( THREE.TimestampQuery.${ this.type.toUpperCase() } ).` );
-			return null;
+			this.resolveQueriesAsync();
+
+			this.currentQueryIndex = 0;
+			this.queryOffsets.clear();
+			this.queryStates.clear();
+			this.activeQuery = null;
 
 		}
 
@@ -222,6 +225,8 @@ class WebGLTimestampQueryPool extends TimestampQueryPool {
 
 			const frames = [];
 
+			this.timestamps.clear();
+
 			for ( const [ uid, promise ] of resolvePromises ) {
 
 				const match = uid.match( /^(.*):f(\d+)$/ );
@@ -386,6 +391,8 @@ class WebGLTimestampQueryPool extends TimestampQueryPool {
 		this.queries = [];
 		this.queryStates.clear();
 		this.queryOffsets.clear();
+		this.timestamps.clear();
+		this.frames = [];
 		this.lastValue = 0;
 		this.activeQuery = null;
 
diff --git a/src/renderers/webgpu/WebGPUBackend.js b/src/renderers/webgpu/WebGPUBackend.js
index b833ccb6956f00..0da7ad4d68da9c 100644
--- a/src/renderers/webgpu/WebGPUBackend.js
+++ b/src/renderers/webgpu/WebGPUBackend.js
@@ -963,7 +963,13 @@ class WebGPUBackend extends Backend {
 
 				if ( renderContext.clearColor || discardColor || clearExternalColor ) {
 
-					if ( i === 0 ) {
+					const clearColor = renderContext.mrt ? renderContext.mrt.getClearColor( renderContext.textures[ i ].name ) : null;
+
+					if ( clearColor !== null ) {
+
+						colorAttachment.clearValue = clearColor;
+
+					} else if ( i === 0 ) {
 
 						colorAttachment.clearValue = renderContext.clearColorValue;
 
diff --git a/src/renderers/webgpu/utils/WebGPUTimestampQueryPool.js b/src/renderers/webgpu/utils/WebGPUTimestampQueryPool.js
index b19dde83e50bb5..4c417487d7ab9e 100644
--- a/src/renderers/webgpu/utils/WebGPUTimestampQueryPool.js
+++ b/src/renderers/webgpu/utils/WebGPUTimestampQueryPool.js
@@ -1,4 +1,4 @@
-import { error, warnOnce } from '../../../utils.js';
+import { error } from '../../../utils.js';
 import TimestampQueryPool from '../../common/TimestampQueryPool.js';
 import { submit } from './WebGPUUtils.js';
 import GPUBufferDescriptor from '../descriptors/GPUBufferDescriptor.js';
@@ -70,8 +70,10 @@ class WebGPUTimestampQueryPool extends TimestampQueryPool {
 
 		if ( this.currentQueryIndex + 2 > this.maxQueries ) {
 
-			warnOnce( `WebGPUTimestampQueryPool [${ this.type }]: Maximum number of queries exceeded, when using trackTimestamp it is necessary to resolves the queries via renderer.resolveTimestampsAsync( THREE.TimestampQuery.${ this.type.toUpperCase() } ).` );
-			return null;
+			this.resolveQueriesAsync();
+
+			this.currentQueryIndex = 0;
+			this.queryOffsets.clear();
 
 		}
 
@@ -200,6 +202,8 @@ class WebGPUTimestampQueryPool extends TimestampQueryPool {
 
 			const frames = [];
 
+			this.timestamps.clear();
+
 			for ( const [ uid, baseOffset ] of currentOffsets ) {
 
 				const match = uid.match( /^(.*):f(\d+)$/ );
@@ -316,6 +320,8 @@ class WebGPUTimestampQueryPool extends TimestampQueryPool {
 		}
 
 		this.queryOffsets.clear();
+		this.timestamps.clear();
+		this.frames = [];
 		this.pendingResolve = null;
 
 	}
diff --git a/test/e2e/puppeteer.js b/test/e2e/puppeteer.js
index 570f916f700176..5de20c544489e0 100644
--- a/test/e2e/puppeteer.js
+++ b/test/e2e/puppeteer.js
@@ -41,6 +41,7 @@ const exceptionList = [
 	'webgpu_compute_sort_bitonic',
 	'webgpu_storage_buffer',
 	'webgpu_tsl_editor',
+	'webgpu_tsl_graph',
 	'webxr_vr_video',
 	'webgpu_tsl_transpiler',
 	'webgpu_rendertarget_2d-array_3d',