This seems to be an OS font problem rather than any app, hence my question here, please. If I enter text on such a site as Upside Down Text I can see the inverted text fine on a Linux desktop, but on the phone display it is missing any instance of "E" or "e". This seems be a font problem on the phone. E.g., on the desktop "I once wondered how space could be curved in a temporal dimension but not in the Euclidean ones." becomes "I ouɔǝ ʍoupǝɹǝp ɥoʍ sdɐɔǝ ɔonlp qǝ ɔnɹʌǝp ıu ɐ ʇǝɯdoɹɐl pıɯǝusıou qnʇ uoʇ ıu ʇɥǝ Ǝnɔlıpǝɐu ouǝs˙" On the Nexus 4 however, it is missing every instance of the inverted "e" and "E", causing me to think it's a local N4 font issue somehow. Does anyone have any insights to a solution, please?