It seems that the the first edition of Metal Gear Solid V: The Phantom Pain suffers from a serious glitch, that could destroy dozens of hours of progress. According to Konami, the bug appears if players use Quite as a buddy on missions 29 or 42. You can avoid the whole problem by not using Quiet on those missions. A patch is most likely on the way as soon as possible.
Metal Gear Solid V: The Phantom Pain was released a bit over a week ago and you can read our review of the game here. Have you encountered any silly bugs in the game? Tell us about them in the comments.