Was in back garden taking photos as normal with the 40-150 Pro & MC14 on a E-M5 (MkI)when it suddenly just wouldn't auto focus. It was a bright sunny day, camera on neck strap, never knocked or dropped. Turned camera on /off - no AF square would come up. Was able to manual focus as normal. Cleaned the lens and the body contacts, tried with and without the MC14, and swapped onto my E-M5 MkII. No AF action at all. Not impressed for a two year old year old lens in that price bracket. My three year 12-40 Pro is going well by way of comparison as has had a much harder life around saltwater and sand. Anyone else had similar issues? Anyway no choice but to send off to the Olympus service at the other end of the country and await the prognosis (and the whack to the hip pocket nerve).