Just fixed it. There is a new download link on the course website. The new gh file works now with the latest DeCodingSpaces-Toolbox version (2020.01):
https://otp.uni-weimar.de/wp-content/uploads/2019/02/02_BasicUrbanDevelopmentModel_II_DS2020_01.zip
Best regards
Reinhard
p.s. I’ll fix the file for the next model tomorrow…