infinite loading when sent to main base ((Metal Gear Solid 5: The Phantom Pain)

tell me, can anyone come across such a problem, let's say; I wanted to cancel the task and go back to the base. I jump into the helicopter and from there I go to the base. after which there is a loading screen for 2-3 minutes. after which the boot circle disappears, but it is not possible to continue the game as it is impossible, and with the preservation I was wise, I am not a hira, I am not a programmer on this and I ask you for help, friends who knows what, who has achieved what, I will be glad for any help.