com.apple.WebKit.WebContent[2264]: getattrlist failed for /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver:

Since the last security update to Big Sur 11.5.1 my screen is frequently going blank for a few seconds before recovering. I can see console at the same time errors relating to getattrlist failing when looking for video drivers (I think)

Jul 28 10:26:16 Davids-MacBook-Pro com.apple.WebKit.WebContent[2264]: getattrlist failed for /Library/GPUBundles/AppleIntelHD5000GraphicsVADriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsVADriver: #2: No such file or directory

Jul 28 10:26:16 Davids-MacBook-Pro com.apple.WebKit.WebContent[2264]: getattrlist failed for /Library/GPUBundles/AppleIntelHSWVA.bundle/Contents/MacOS/AppleIntelHSWVA: #2: No such file or directory

Jul 28 10:26:17 Davids-MacBook-Pro com.apple.WebKit.WebContent[2264]: getattrlist failed for /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver: #2: No such file or directory

Jul 28 10:26:17 Davids-MacBook-Pro com.apple.WebKit.WebContent[2264]: getattrlist failed for /System/Library/Frameworks/OpenGL.framework/Resources//GLRendererFloat.bundle/GLRendererFloat: #2: No such file or directory

It was fine before the update, is anyone else experiencing similar issues?

My device is a MacBook Pro (Retina, 15-inch, Mid 2015)