Why Halo: The Master Chief Collection's Reach PC 'FireFlight' Was Delayed

343 Industries has delayed the Halo: Reach PC "FireFlight" that was originally planned for July due to "severe blocking bugs," meaning that those hoping to try out the first game to be released in the upcoming Halo: The Master Chief Collection for PC will have to wait a bit longer.
343 Industries published a blog on HaloWaypoint.com to update Halo fans as to why the planned flighting hasn't happened yet and what these "blocking bugs" are.
Blocking Bugs are issues that "are deemed severe enough t