Page URL segment counts more than All visits segment

My understanding is that a Segment is a subset of your Analytics data.

In piwik dashboard, I go to “Goals” -> "Overview"
I notice that when I use “All visits (default)”, it has LESS conversions than if I use some setting on Segment (which supposed to be a subset of All visits) In this case, the segment I used was “Page URL” “contains” “…”

How is this possible?

I’ve checked 301 Moved Permanently
which is solved by upgrading prototype, however I’m not using prototype nor custom variables.

Hi there,

This should not happen. Could you create a bug report @ Issues · matomo-org/piwik · GitHub
and post 2 screenshots showing All Visits and one showing your segment, for the same website/period (but not for date = today) ?