The map does not display anything [Is the answer!] (Assassin's Creed 3)

It is jambs of the game. From time to time appears and disappears

A similar glitch happens when you minimize the game.

VLRKNG
Yes, when you minimize...
there are two ways:
1) to die
2)re

Assholes )))))))))))) . the map did not really is until you climb to the viewpoint ! )))))))))))))))))