[2020] Metro and bus lines

You can upload your save to the workshop, that would let us take a look which might be more helpful then guessing. :) To upload it go to the Content Manager, find Savegames on the left, find your save and click the Share button. Then give it a name and description if you'd like, click Upload and post a link to the page that appears. :)

Yes, you are welcome to share your save too. Hopefully it can provide some insight on what's happening, so it can be solved. :)

Can you post a link to it here? Just go to its workshop page and right-click to get the option to "Copy Page URL" (If you're in the Steam client at least).