This will be fixed by the fix for bug 901097, which is the gles2 branch.
But until then, there is a simple workaround. In CCSM, Workarounds, enable "Force full screen redraw (buffer swap) on repaint".
This will be fixed by the fix for bug 901097, which is the gles2 branch.
But until then, there is a simple workaround. In CCSM, Workarounds, enable "Force full screen redraw (buffer swap) on repaint".