DesolateNightSky just an advice. Don't try deleting a chapter if you've accidentally updated an old published chapter and edited it (Thus causing it to disappear from Webnovel). That makes the problem worse.
Dont update a published novel right now
Dont Delete a published novel right now
Dont tamper much with an existing authors note right now as well.
If you are preparing to publish a chapter while you have no issues yet, make sure you edit before it is published (if you are working on a timer) for now as it would be a bad idea to update it after with the current situation with webnovel updates.