When I open the launcher, it acts the complete same. It opens the actual game normally, and the loading screen is only a bit more laggy than usual, but it fixes itself and acts normal. Once I join a world, whether it's a server, realm, or a single-player game, it completely glitches out. The hotbar/health is constantly flashing in and out, it's so laggy I can barely move, and half the time my pov is covered with solid colors. Before this last update it worked completely fine, only had light lag when I first joined a world, and would balance back out quickly. If I go to settings, it's glitched there. Once I leave the world, the loading screen starts glitching too. Have closed it and tried again multiple times, only for it to do the same thing.