Freezing on loading screen

Game freezes on loading screen, after using coffeescript. Maybe related to this error reported in the console, which does not appear on other levels with default code:

Uncaught Error: Invalid mapping: {"generated":{"line":41,"column":26},"source":"chooseAction","original":{"line":0,"column":0},"name":"this$"}

Tracking it over here - is it nested loops, by any chance?

Probly. Same symptoms as the bug filing… thanks for the quick response. I’ll look out for a solution, maybe if i have time i’ll even clone the repo for some local testing. Cheers, Francisco.