Slaver caravan with no slaves: Bug or bad RNG?

[Yoshida Keiji]

http://imgur.com/a/oO7Ec

http://steamcommunity.com/sharedfiles/filedetails/?id=1133221448

https://steamuserimages-a.akamaihd.net/ugc/869614663065676033/B321AA3A400B3BE3452671D0EFE291D593659833/

...Like I need to increase my colony's population... I get the announcement of Slaver caravan and think: "Just in time"... only that when I open trade... out of 21 people in that caravan...no slave at all...

Honestly, I can't remember when was the last game I ever bought a slave...

[XeoNovaDan]

Each storyteller has an 'Intended Population' which I believe adjusts with time. The closer you are to your intended population, the harder it is to acquire colonists. As far as I know, Slavers only actually stock slaves if you're significantly below the storytellers Intended Population. In this case: WAD.

Although 6 pawns by Septober of 5501 is definitely low.

[ison]

It's most likely a combination of how storytellers work + rng. Storytellers make sure you don't have too many pawns. Thanks for reporting though.