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(+1)

Are you sure you have downloaded and running the latest version? Did you launch the game from the right folder or use the right application? No one has faced this kind of issue. Then maybe you are having problems with your save file? Have you tried launch save from previous days and then quickly skip through the day after which the next one does not appear? 

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I have indeed downloaded the latest version. I tried uninstalling and reinstalling just now and that seemed to have fixed it

that's a problem with the itch game launcher, it happens with a few games when they update, but like you said you just have to delete the game and redownload it to fix it.