My PL 14-150 just bit the dust
most likely it is the autofocus motor which has quirks. which will be repair anyhow.
depending the camera settings it is possible that you need focus confirmation before being able to make the shot even in manual. that is one of the priority modes in the setup on my e3.
but sending it in seems a must in this case. Real pity for the rest it seems to be a very nice lense.
Olympus: E-3, 12-60SWD, EX25,EC20, FL50R, 50-200SWD