Error adding railway layer about prettymaps HOT 4 OPEN

I've finally gotten railways to display using the custom_filter way, but only after putting a large value for dilation, e.g.

'railway':{'custom_filter': '["railway"~"rail|light_rail"]', 'dilate':2000}

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'railway':{'custom_filter': '["railway"~"rail|light_rail"]', 'dilate':2000}

Thank you for the suggestion! Unfortunately this did not work for me. I tried increasing the value of dilate to 4000, and it gave this error:-

networkx.exception.NetworkXPointlessConcept: Connectivity is undefined for the null graph.

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Confirming that this same NotImplementedError error occurs when adding waterways via 'waterway': {}.

These problems seem related based on handling in get_streets(); please let me know if you find a fix!

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I'm just testing out the demo, and was wondering too why the railways weren't working.

I got them to work with the custom filter above, plus with dilate number 200. If it matters, my target was Riihimäki, Finland.

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