gilded hound
Having "Attach private thread to each ticket" enabled but not having a "Private Thread Name" set will give a System Failure: "undefined" is not valid JSON error. Ticket channel will create but will fail to actually create a "ticket" (no Ticket Tool post etc.).
plush marsh
Looks like a similar default fallback as here: https://discord.com/channels/509192800865353738/1218591191969304586