Updated builds.

build/three.cjs

@@ -18414,7 +18414,8 @@ class WebXRManager extends EventDispatcher {
 					newRenderTarget = new WebGLRenderTarget(glBaseLayer.framebufferWidth, glBaseLayer.framebufferHeight, {
 						format: RGBAFormat,
 						type: UnsignedByteType,
-						encoding: renderer.outputEncoding
+						encoding: renderer.outputEncoding,
+						stencilBuffer: attributes.stencil
 					});
 				} else {
 					let depthFormat = null;

build/three.js

@@ -18416,7 +18416,8 @@
 						newRenderTarget = new WebGLRenderTarget(glBaseLayer.framebufferWidth, glBaseLayer.framebufferHeight, {
 							format: RGBAFormat,
 							type: UnsignedByteType,
-							encoding: renderer.outputEncoding
+							encoding: renderer.outputEncoding,
+							stencilBuffer: attributes.stencil
 						});
 					} else {
 						let depthFormat = null;

build/three.module.js

@@ -25027,7 +25027,8 @@ class WebXRManager extends EventDispatcher {
 						{
 							format: RGBAFormat,
 							type: UnsignedByteType,
-							encoding: renderer.outputEncoding
+							encoding: renderer.outputEncoding,
+							stencilBuffer: attributes.stencil
 						}
 					);