Receiving Notifications from other Households

I was just playing with my current Sims household when up popped a notification for a random Sim I have never played, Raquel Croft. It let me know she had received a signing bonus due to her degree in this field.

I have never played as her, she is not in my played households in Manage Households, she is not living in any of the homes in the world, and the Sims I was playing haven't met her. (I did not see her when going through my current two adult Sims' relationships, and their baby doesn't know anyone but a neighbor who came with the Welcome Wagon. It's possible she knows someone in a different played household. I have a vague sense that she might have lived in the same dorm as one of my other Sims during university.) 

I paused as soon as it hit and searched the nearby world, but I could not see her wandering the nearby streets. (I can't find it now, but another bug thread that was similar, about a Sim I wasn't playing at the time getting an interest payment, it turned out that that sim was wandering the world nearby and the game thought of him as being on the currently-played sims' lot. The difference with that bug, though, was that that other Sim was one I had played before, though I wasn't playing him at that moment.)

However, when I checked recent neighborhood stories, a story did show up about her joining a career. And she might be somewhere nearby and I just am missing her. I'm including a Zip file with the save file and some screenshots. The Sims I was playing at the time of the notification are the Richard family in San Sequoia.

Playing on a Mac, never CC or mods. I did just get Businesses & Hobbies today, but I feel like I have seen this happen (quite rarely, and not for a long time) before.

Random sim signing bonus.zip