JSON syntax & missing players

[dawinaj]

Hello,
I edited .js a bit (ready skins from minotar) and created PHP file, searching all players in all worlds.
Based on .js code i managed to make such structure, is it correct? The world name should be filename or the mapcrafter's config names?

Also, some skins are not visible. There are only two players shown on map, although both JSON and <title> counter show 4:

And in json there are four for this map:

Edit:
I tried to read the plugin code and added dimensions & few other things, but players are still shown in all dimensions...