A few weeks ago, I loved entering CCs all the time. This really helped me a lot with shading and other things. I have noticed that some of those CCs have been cancelled, but I couldn't figure out why because the project was unshared. Please give me reasons why CCs could be cancelled.

There are a ton of reasons- nobody was entering, they got really busy IRL and didn't have time for it, they simply decided that they didn't want to host one after all…
The list goes on. There's no one reason that it might get cancelled, chances are the person for whatever reason just changed their mind.

Thanks so much!