I also noticed this issue. I did find a relatively simple work around however - if you first chat with the constructor robot, and queue the upgrade simray command, my sim could successfully complete the upgrade action without the pathing error.
There's some other bugs with the Invention Constructor, specifically the object animations and effects centering on the player instead of inside the machine's working space. I only found this out because I started a new Not so Berry run out of boredom to see how bugged the scientist career is. 😞
I'm going to create a ticket specifically for my issue but I just wanted to add it here so other simmers can be aware that the Invention Constructor object is currently a bit wonky in a number of ways that it wasn't a year ago.
