Prometheus is only scraping a small fraction of the gitlab-sidekiq fleet

Prometheus is only scraping a small fraction of the gitlab-sidekiq fleet

https://prometheus-app.gprd.gitlab.net/graph?g0.range_input=2d&g0.expr=avg(up%7Btier%3D%22sv%22%2C%20job%3D%22gitlab-sidekiq%22%7D)%20by%20(priority)&g0.tab=0

On https://prometheus-app.gprd.gitlab.net/targets, we see the error expected label name, got "INVALID"

My guess is that the openmetrics scrape endpoint is not returning valid openmetrics.