Commands such as /change weather and /set time do not work

I have a creative world I work on a lot and recently I had to stop using set time and change weather because whenever I try to use it the game freezes and later crashes. This started to happen as soon as I downloaded the newest update, 1.19. The world I'm using is pretty old and has been copied over and over again. There are also millions of blocks that I have placed and broken. Is this a problem with the world or a problem with the game?