Railroad goes inside mountainside

Same here.  They are the tracks that go along side the mountain tracks

Crazy train tracks, going their own way through buildings. 

Same here, did the 'follow along' this morning and when the train went into the mountains my game crashed.

Seeing the same issue too

There’s one in all of the regions too

Tracks under the mountains

Same here, tried bulldozing and rebuilding but still goes into the mountains. Why am I not surprised!

Perhaps they're working on subways. My tracks are still connected and trains are traveling... through the mountain slopes. Tap on a train and flyover follow it into the mountains. 

There is a new mass transit hq building under construction outside the capital city border, the location is in between neon mall & dr vu tower. Will it be connect with inside city railways ?

same, just noticed it last night