Recently while customizing the Order form for one of the customization, my team found this interesting thing w.r.t Background Processes (System Jobs) and Order form navigation. We were facing problem getting the link in navigation though I can see the relationship already added in customization mode but not in the ribbon. Not sure if this is a bug or something by design that I’m missing as same behavior was on new CRM online instance too. I have an open question for same on Community Forum here.
It seems like a bug, please consider voting for this issue in Microsoft connect.