WEAPON NO LONGER DISPLAYED (S.T.A.L.K.E.R.: Shadow of Chernobyl)

Game version: v.1.0006;
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Description of the problem:
Recently during the game occurred, some incomprehensible bug. When I take out any weapon, I hear the sound of a number of rounds of ammunition in the bottom right corner of the screen, but the weapon itself seems to have become "invisible". You can't see the 3D model of the weapon on the screen. If you try to shoot, the bullets will just appear "out of thin air." At the same time, the bullets fly on the correct trajectory and cause damage. Weapons can also be recharged. If you throw a weapon on the ground, it will be visible. Also, the screen does not show the sight "from the hip", and if you try to aim weapons, just decreases the field of view, and the weapon remains invisible. At the same time, all other elements of the interface, like the minicard, fatigue indicator, etc. have not disappeared.
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Background:
Before all the weapons became invisible, I used a console and injected a command for the free-flight camera. Usually, when the free flight mode is turned on, red text flashes in the center of the screen, but at one point when I was flying on the map, all the texts disappeared and all the additional indicators disappeared on the screen, only the game itself could be seen.
(This moment I didn't even notice)
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The reboot didn't help.
"Downloading old saves too..."
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Question:
(I would like to do without reinstalling the game, etc.)
Is it I accidentally clicked something / wrote in the console or is it a bug?
How do you solve this problem?
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Thank you in advance.