Wow, I'm surprised someone else actually posted on here! Mainly I get interaction on the RPG Maker forum.
I was able to recreate the bug. I never noticed that before, so I'll fix it asap and upload a new version when I can.
How far did you get in the demo? Are you open to sharing more thoughts about it?
EDIT: I fixed the bug by turning off the switch that allows the player to start the mission a second time. I added it to the event that runs right after you leave the North Industrial Zone.