Full disclosure, I'm using EasyStar from another member of this forum, but I don't think this particular error is related (at least, if it is, I'm kinda screwed because it's the linchpin of the entire AI).
So, I'll start off with ... this is a HUGE project based on a $5000 Kickstarter and about a year or two of my life, so, please take heart that it's not easy for me to put up something this large, or that I want to monetize, but it's been weeks and I can not get past this bug and I figure, maybe one of your eyes will do it.
The capx is attached... It's humongous.
I realize you may be totally unable to help given the sheer magnitude of the project.
Here's the repro steps.
1. Load University Level layout.
2. Play the game.
Any help is greatly appreciated, and I'll happily put you in the credits. Looking forward to finishing this and getting it on Steam by launch day (Jun 30).