Can't parse this geojson file

[lukepighetti]

I created this from mapshaper and a 500m simplification and it won't parse with geojson. I did one with a 50m and the same workflow and it did work. Here is the one that doesn't work.

wmd-fast.json.zip

[lukepighetti]

Here is the 50m one that does parse.
wmd.json.zip