Invalid GeoJson

Hello guys
I’m trying to make a small POC in Unity using OSMBuilding, but
I’m getting invalid GeoJson from OSMbuildings server.

using this:



I didn’t check much more tiles, but it seems that there is problem with the GeoJson creation.

Is someone else having the same problem?

Have you tried another server which capable to return json? For my unity project (utymap), I’m using mapzen for lower LODs.