Since the release of the 1.04 patch to stable, and as an example, if I have the game in my native 2K resolution, then start the game again, the HUD, menus and loading screens appear, but any rendered images are completely black. This is to say that the main menu will show the menu options, character stats and the DayZ logo, but the rest of the screen is completely black. If I go further, by joining a server from this state, the game will appear to load as normal, only to repeat the same scenario where the HUD/GUI (hotbar) is visible, environmental sounds are normal, but the screen is otherwise completely black.

If I change the resolution to 1080p, everything reappears. If I switch back to 2K, everything is black again.

If I switch back to 1080p where everything is rendering normally, then shut the game down and re-enter, everything is black once again. If I revert BACK to 2K resolution, everything is normal and rendered. It appears that whatever the last resolution was that I used is somehow bugged upon reloading the game.