Hi,
https://www.openstreetmap.org/way/1233173597 looks like a riding arena, but you have tagged it leisure=horse_riding, which is the tag for riding centres. In OSM riding arenas (and also round pens) are usually tagged leisure=pitch +  sport=equestrian and in iD there is a different preset for ridng arenas than for riding centres that sets these tags. Please make sure you use the correct presets depending on what you want to map.

This is also relevant for
https://www.openstreetmap.org/way/1232990494
https://www.openstreetmap.org/way/1232990497
and
https://www.openstreetmap.org/way/1221066229

Compare
https://wiki.openstreetmap.org/wiki/Tag%3Aleisure%3Dhorse_riding
https://www.openstreetmap.org/way/1036361201 (example)