If you are trying to find Julian, what worked for me was hitting work and having yourself work instead of your servants, as I tried sending my servants to work for 20 days and did not see Julian but after, upon my third time sending myself to work, I was able to get Julian to show up.
I'm only saying this since people down below are saying to have your servants work in order for Julian to show up. idk if I got unlucky or something but Ill just state what worked for me to help anyone else through this.