Vector upserting stops at 1466 uploaded vectors


I am trying to upload around 86000 vectors. Each of them is 768-dimensional. From what I have read in the docs, the free tier should be able to store at least 100000 vectors. The problem is that even if the upsert() call does not return an error, the number of uploaded vectors is capped at 1466.

Anyone knows why this might be happening? I mention that I also tried to upload 32-dimensional vectors (with and without associated medatada) but the number of vectors stopped increasing after 1466. Also, the dashboard shows that the pod is 0.0% full.