Why does the obs still show up on the map even though I removed it from my project?

I made a personal project to track the species I find at my vernal pool: https://www.inaturalist.org/projects/gianna-s-vernal-pool

However, one of the observations I added actually was far away from the pool, so I removed it. Even so, it still shows up outside the boundary. Why is this?

It needs some time to update.