Hi,

This changeset changes layer from -2 to 1 on several segments of the line 5:
https://www.openstreetmap.org/way/756780036
https://www.openstreetmap.org/way/756780039

But, as far as I know, the subway is underground there. Maybe you meant to set it to -1? Or maybe you did not mean to change it?

Cheers,