I found a bug where you can't seem to complete the story quest where you have to create a youth elixir for Melissa after talking to Sebastian. One of the requirements for the quest is that you need to create a alchemy room. However, the alchemist background gives you a alchemy room from the start. Even if I create the elixir, the game tells me I shoudn't talk to her until after I finish the quest. Is there something I'm else I need to do to get around this?