Just tried the last version loaded fine and return the data as expected (PR 1.2 here).

I think you should offer users a couple of enhancements to speed the app

- save/default to last stations (often i need to quickly find if next train is going to arrive first then the later train, via another route but entering location can take a few seconds and time is short)
- or/and keep an history of recent locations

i like the option to reverse the route (fiy, that button seems to be blank), if you can take a look at the google translator interface app