• What did you see?

The Canal Saint-Martin near Bastille, Paris. However, it is covered and there's a pedestrian plaza on top of it, so we shouldn't be able to see it.

• What did you expect to see?

The riverbank underneath has tunnel tags, and this should mean the draw order is reduced and it draws underneath the pedestrian plaza.

• What map location are you having problems with? City and country are helpful, as well as tile coordinates or latitude / longitude.

https://tangrams.github.io/walkabout-style/#17.466666666666676/48.85481/2.37024

• Screenshot? Props for animated gifs.