Hi,
You have removed the tag building=yes from https://www.openstreetmap.org/way/472335582 (and replaced it with leisure=horse_riding). This was not a good idea because now this building is no longer rendered as a building on the map. If the building is an indoor riding arena you can use tag building=riding_hall instead of building=yes. The tag leisure=horse_riding is not for indoor arenas, it is for the whole riding centre, like here: https://www.openstreetmap.org/way/1159188272 or here: https://www.openstreetmap.org/node/8108592238.
See also: https://wiki.openstreetmap.org/wiki/FR:Tag:leisure=horse_riding