Bug on the quest Old Lighthouse Caspian. (Metro Exodus)

Krch case is already almost a week ago, but since I did not find a solution to the problem, I decided to write here.
Faced a problem, after receiving a wheelbarrow at the Caspian lok, it was told to help Gul at the lighthouse. No matter how many times (and in whatever ways) I tried to get to this malicious beacon, every time I left the cave, the game died, freezing. No errors, just hangs without the ability to minimize or close the game. All applications work, but there is no way to even use them (as well as the task manager). The only way to get the computer back to working order was to reboot.
The computer is completely assembled from scratch a week before NG.
i5-10400f, mother of Asus PRIME Z490M-PLUS, 32GB RAM 3200 MHz, Asus GTX 1660 SUPER OC 6gb.
In order not to overload the system, I played at high, although it is quite played without friezes at ultras.
A topic with a similar bug was raised earlier in the incentive, but I did not find a sensible solution to this problem at all.