Sporting tags not rendered.

I had added a soccer pitch, which didn't get rendered. I think I tried both with an area and a point. Both failed. I checked at for instance this area: [Roomburg][1]. There's is a whole bunch of various pitches, none get rendered. As usual: what's the point of tagging them, when they don't get rendered? And wasting time to find out what is going on. One mapper after another. So, if there isn't any mistake, please render them. [1]: https://www.openstreetmap.org/#map=18/52.14770/4.50382