No lanes visible on zooming in

[nekromoff]

I have tried different parts of Bratislava with the largest zoom (22), but no lanes are shown:
https://safecyclingmap.com/#22/48.14102699/17.11675541

Safety marking works well (I mean based on the OSM data at least).

[nekromoff]

I couldn't get lanes to load here either:
https://safecyclingmap.com/#20.8/-33.880634/151.2169007
Tried both Chromium and Firefox.