Just received a new Vello P-TTL cord for Pentax https://www.vellogear.com/product/5...Camera-TTL-Flash-Cord-for-Pentax-Cameras-(3') I've tried it with both my K3II and the K1MII when connecting my AF360FGZII flash with the cord there is no communication whatsoever on either camera. I know the issue is something with the cord, because when the flash is mounted in the hot shoe of either camera, it works perfectly. Also tried remounting multiple times and verified that it's mounted correcting at the connections. Have I got a bad cord, or is there something I'm missing????????