Last update broke somethings

[Former user]

I am playing in Linux x64 Ubuntu 20.04 without any of these problems before the last two updates: 1) the enemy from the last episode that fly. When he flies and fire and smoke go away from the backpack. Now big particle orange flash in all screen. 2) When you pause the game and back you can see how some elements of the rendering momentary disappear and flash until these drawn again okey. Like doors or assets, not the map csg. Even meanwhile you're playing sometimes the door that you have en front some seconds before open, this disappears and flash.