I see the same issue when using my Nexus 7 (Android Chrome browser) – the mobile menu icon is not visible but an empty space is there – if clicked on, it shows the menu options. So apparently the mobile menu icon isn’t rendered properly on this device. I don’t think it’s theme-related since Chrome on Windows desktop with window sized very narrow shows menu icon just fine and my android smartphone displays icon ok. Any ideas why Nexus 7 doesn’t render?
Thanks,
– Dave
Android (depending on version) doesn’t recognize the unicode ☰ that is used to create the Hamburger menu icon. You will need to edit the assets/js/sigma.min.js and replace ☰ with ≡ http://unicode.johnholtripley.co.uk/2261/> Or use an image or @font-face to render 100% devices.