Can't create a game using my custom made maps

My custom made maps using polygon method aren't creating games. Every single time I try creating a game using a prior created map I get a HTTP 400 message indicating "invalid parameters". Same happens if I create a new map using polygon and try to start a new game using that map. While browsing public maps, everything seems to load.

When comparing the HTTP requests I send on both maps, the only difference seems to be the map id, but every other parameter is the same. However i don't get a token back on my maps.

Note is is not a 404 message, nor an "invalid map" message.