I was working on a logo project, and I duplicated four artboards to make a new set, and when I did, half of them couldn’t paste because they went outside the document bounds, and the remaining artboards glitched when I tried to delete them. I closed and reopened the document, and none of the artboards came up, then I tried closing the app, and it still didn’t load, I also deleted the app and redownloaded it, amd it still didn’t load properly. Then the app wouldn’t load anything at all.