I promise I am trying to keep my stupid c&v questions to a minimum of like, one per week.

So, I have noticed my chain backs off every time the wheels roll backwards. I've had bikes do that before , but this is like clockwork on the new to me campy equipped Ciocc, so I wondered if it is a campy thing, the free hub?

None of my current other bikes (sram red, shimano ultegra) do this.

Shifting is noticeably smoother on the campy than all others I have now or have since owned. No dropping, no rubbing, minimal chatter, easy trimming..all good stuff. I keep a chain catcher on my red equipped cervelo to make sure I don't drop when moving to the small ring, which has never been a problem for me on any other drive trains. Granted that is while riding and shifting, not when rolling backwards.

Any ideas? Is it just me? I may have to start bringing a grease rag with me if I can't figure this out.