My girlfriend owns a macbook and her username for oort: IZZYMANSKE and as soon as she logs in to oortonline and trys to play it has white lines and other white shapes all over, as well when she moves the whole screen goes white except for her hotbar, i have 2 screen shots
We have a workaround for this at the moment. If you press O you should see an options menu. Click on “Post Effects” (or “Use RenderBuffer” if you cant see “Post Effects”) so that it switches to OFF.