Bio titan does not show in the last part of the mission

Platform: PC, game distributor Steam;

Video Clips:  I don't have one. I can update this in the future with one;

Issue Details: The issue occurs on the operation "Termination", in the last part of it, the boss arena to kill the Bio Titan. When opening the first door to the arena, after the elevator with the weapons cache, you should see the Bio Titan passing over a concrete bridge, taking parts of the structure off as it passes. In this bug, I can't see the Bio Titan, but everything else is rendered, even the animation of the bridge being damaged by the bio titan. After this, I sometimes can reach the arena with the mechanics to commandeer the turrets to take out the Titan, that is being rendered correctly where it should be. Other times, and I don't know if this is related, the game calls a win in the operation, fading into the winning cinematic when passing over the same bridge, and the game follows into the win score and everything goes as if we had won the operation. In both flows I don't get any error message.