Pre-Xbox One release was quite the time for Microsoft. With rumors regarding yield issues, hardware performance and behind the scene management changes, to say times were rocky is an understatement. One rumor that seemed to take a back door to some of the larger issues at hand was status and stability of Xbox One's party chat feature.
In an interview with an "unnamed" developer, Pete Dodd broke rumors of an under baked party chat system were described in detail, claiming crashes, unintuitiveness and a simply unfinished product. In a follow up "interview, that same developer has described acknowledgment of such issues with the current state of Xbox One's party chat system:
Microsoft over the coming months will be replacing the entire party/notification/XBL-related UI parts wholesale. They won’t be fixing them like they previously had been telling developers. This is definitely a smart move and the right decision for the console long term but it will have some fairly significant short-term implications. They likely won’t be finished until well into spring or possibly early summer (update: one of the sources of this story just told me “It may take up to a year” HOLY CRAP).
A complete overhaul is a big deal and points at problems past a simple "clean up" of the system. Although there are several "sources" in the mix, it's important to note that there is also a very large discrepancy in the time frame these fixes seem to be set for (if true, in the first place).