[ARCHIVED] Routing/Sit down issue on several interactions

I have had issues with my sims sitting down between interactions. My Sim was supposed to be taking care of her toddler, with multiple actions queued up, and she would set the toddler down to sit on the couch and then pick them back up. Answer the door to let a guest in? Let's sit down first.

In this scenario, they were drawn to my three seat couch (not loveseat). Seems to happen when they are in the same room as the couch.