Not full metrics list

[FightingFox]

Good day.
I use prometheus_fastapi_instrumentator, version 6.0.0.

I create test application:

from prometheus_fastapi_instrumentator import Instrumentator

Instrumentator().instrument(app).expose(app)

# My app

and i see all metrics in Prometheus.

But when I use this code in big productive application (with the same structure), I not see some metrics, for example http_requests_total.

In test app:

In productive app:

Prometheus sees both sources:

Can you help me?

[FightingFox]

Ok, probability prometheus_fastapi_instrumentator version 6.0.0 incompatible with FastAPI version 0.80.0. It's working with FastAPI 0.101.1.