Hmm... interesting. I just tried mounting the Panasonic Leica 12-60mm f/2.8-4 lens onto my OM-1 Mark II and it looks like it only knows how to AF using contrast detect AF.
I mounted the OM 12-40mm f/2.8 Pro back onto the OM-1 II and it went straight back to non-hunting PDAF.
Has anyone else noticed the lack of PDAF when using Pana lenses on OM bodies?