Softflowd missing fields

[DutchSamurai]

Hi,

I'm trying to build a ELK stack for visualizing all data however I noticed that there are some missing fields in softflowd such as out.bytes.

I found this topic where the author of softflowd says there is no out.byte stream but there are two streams, one for incoming and one for outgoing (I fail to see how that is different from in.bytes and out.bytes but anyway).
https://forum.pfsense.org/index.php?topic=91592.0

The problem is I can't figure out what that stream representing out bytes is supposed to be.

Anybody knows how to get proper netflow traffic on pfsense? Having that available is paramount for my project.