I placed my Female Cockatrice into trading; it disappeared without giving me any coins from the auction. Luckily, I still owned her child, so I checked her pedigree and it said that her mother was employed at the State Portal Service branch. I was very confused because I don't even have that building. Is this a bug?

Someone bought your Cockatrice and sent it to the SPSB. Please check your Manor Reports (stored for 3 days) if you would like to see the buyer and the amount you earned from the sale.