RZ67 won't wind on

I was out shooting today and my RZ would wind on after taking the first shot. I could get it to work by jiggling the T and N button on the lens. It only happens with the 65mm lens, the 110mm lens works fine. At one point I could hear a whirring sound. Any ideas on what is going on and how to fix it?
Thanks
Greg

I think I may have worked it out. The cable release attachment on the lens was sticking out a bit. I'll give it another try next week and see if that is it.