Eye of Ender and /locate indicate Strongholds are in incorrect locations

When throwing Eyes of Ender/Ender Eyes/whatever to locate a Stronghold in creative mode, I noticed that the location they indicated the Stronghold was at (where they floated down) had no structures, caves or similar at all, and the nearest structures like those were a mineshaft and a dungeon. I then tried /locate, which indicated the same. After looking around the general 500-block area in spectator mode, I hadn't found anything.

Screenshot attached