# Anki opens but all windows are blank **URL:** \ **Category:** Help\ **Created:** [April 1, 2021, 11:08pm UTC](https://forums.ankiweb.net/t/anki-opens-but-all-windows-are-blank/8920 "2021-04-01T23:08:38Z")\ **Posts on this page:** 1\ **Showing post:** 18
**Author:** ![ELLIOTTCABLE](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/elliottcable/32/7109_2.png) [@ELLIOTTCABLE](https://forums.ankiweb.net/u/ELLIOTTCABLE)\ **Post date:** [December 2, 2021, 3:27pm UTC](https://forums.ankiweb.net/t/anki-opens-but-all-windows-are-blank/8920/18 "2021-12-02T15:27:14Z")
> [@dae](#): > > Please start the qt6 build from Terminal.app with /Applications/Anki.app/Contents/MacOS/anki - maybe the text it outputs may give a hint as to the issue. Fascinating. The following error is repeated dozens of times, and does not appear when the qt6 build is launched on my M1 Macbook: ```auto ❯ ~ [7m 38s] /Applications/Anki.app/Contents/MacOS/anki Anki starting... Initial setup... Running with temporary Qt5 compatibility shims. Run with DISABLE_QT5_COMPAT=1 to confirm compatibility with Qt6. Preparing to run... qt.webenginecontext: GLImplementation: core_profile Surface Type: OpenGL Surface Profile: CoreProfile Surface Version: 4.1 Using Default SG Backend: yes Using Software Dynamic GL: no Using Angle: no Init Parameters: * application-name Anki * browser-subprocess-path /Applications/Anki.app/Contents/Frameworks/QtWebEngineCore.framework/Helpers/QtWebEngineProcess.app/Contents/MacOS/QtWebEngineProcess * disable-features DnsOverHttpsUpgrade,ConsolidatedMovementXY,InstalledApp,BackgroundFetch,WebOTP,WebPayments,WebUSB,PictureInPicture * disable-speech-api * enable-features TracingServiceInProcess * enable-threaded-compositing * gpu-preferences 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 * in-process-gpu * use-gl core_profile Starting main loop... [61126:48387:1202/084531.121265:ERROR:gl_context_cgl.cc(115)] Error creating context. [61126:48387:1202/084531.123325:ERROR:gl_context_cgl.cc(115)] Error creating context. [61126:48387:1202/084531.123344:ERROR:gpu_channel_manager.cc(771)] ContextResult::kFatalFailure: Failed to create shared context for virtualization. [61126:48387:1202/084531.123353:ERROR:shared_image_stub.cc(470)] SharedImageStub: unable to create context [61126:48387:1202/084531.123366:ERROR:gpu_channel.cc(449)] GpuChannel: Failed to create SharedImageStub [61126:48387:1202/084531.124454:ERROR:gl_context_cgl.cc(115)] Error creating context. [61126:48387:1202/084531.125649:ERROR:gl_context_cgl.cc(115)] Error creating context. [61126:48387:1202/084531.125670:ERROR:gpu_channel_manager.cc(771)] ContextResult::kFatalFailure: Failed to create shared context for virtualization. [61126:48387:1202/084531.125676:ERROR:shared_image_stub.cc(470)] SharedImageStub: unable to create context [61126:48387:1202/084531.125684:ERROR:gpu_channel.cc(449)] GpuChannel: Failed to create SharedImageStub [61126:48387:1202/084531.127800:ERROR:gl_context_cgl.cc(115)] Error creating context. [61126:48387:1202/084531.129710:ERROR:gl_context_cgl.cc(115)] Error creating context. [61126:48387:1202/084531.129726:ERROR:gpu_channel_manager.cc(771)] ContextResult::kFatalFailure: Failed to create shared context for virtualization. [61126:48387:1202/084531.129732:ERROR:shared_image_stub.cc(470)] SharedImageStub: unable to create context [61126:48387:1202/084531.129739:ERROR:gpu_channel.cc(449)] GpuChannel: Failed to create SharedImageStub ``` This can be temporarily bypassed (as documented [on this GitHub Issue for another qt-using project that fails to render on macOS](https://github.com/supercollider/supercollider/issues/4136#issuecomment-433145899)) with the following invocation: ```sh QTWEBENGINE_CHROMIUM_FLAGS="--disable-gpu" /Applications/Anki.app/Contents/MacOS/anki ``` I’m happy to provide extra debugging feedback when I can, although I won’t have access to this computer for some period of time … if anybody else runs across this issue, I adapted [ahihi’s script](https://github.com/supercollider/supercollider/issues/4136#issuecomment-605447703) to “patch” (… sort of) Anki so that you can successfully launch it from the Finder: > Download, set as executable, execute, and rebuild the LaunchServices database: ```sh /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister\ -kill -r -domain local -domain system -domain user ``` --- _[View the full topic](https://forums.ankiweb.net/t/anki-opens-but-all-windows-are-blank/8920)._