/locate Fortress Not Actually There

I checked the other issues involving Nether Fortresses and none of them were quite the same. The

Steps to reproduce:

1. seed of my world is -1716253492
2. used /locate to find the nearest Nether Fortress

Observed:
I went to those coordinates and searched the entire Y-axis at those coordinates (only 2 Y-locations shown in the screenshots), but the Fortress is just not there.

Expected:
The Nether Fortress is supposed to be there and I would like it to be there because it's fairly close to my home portal. Thanks!