Hi Liden,

Welcome to OpenStreetMap!

You've added a bunch of building nodes to the SRL East. They do not need to be connected as the railway will be underground.

Could you please remove these nodes from the railway:

https://www.openstreetmap.org/node/12314247407
https://www.openstreetmap.org/node/12314247408
https://www.openstreetmap.org/node/12314247413
https://www.openstreetmap.org/node/12314217108
https://www.openstreetmap.org/node/12314217107

*and any others I may have missed*

Thanks for mapping, have fun :)