Thank you for your reaction. However, I think you've uploaded the wrong model (combustormodel).
I think I found the problem though. It seems that when you want to interupt the workers from working when they go off shift, this can only be done when the server capacity is set to 1. Does anybody know why this is and how I can allow multiple workers to work at a station, but still make them stop working when they go off shift?
Kind regards,
Roeland