No Rebels

I've tried it several ways now as suggested here:
https://forums.totalwar.org/vb/showthread.php?t=74431

But none of them did anything to remove random rebel spawns.
As a synopsis:
I set the rebel spawn value to 100 and 200, trying both ways
I added the no rebel/pirate tags to every single province in the regions text file, overwriting "none" with the tag alone if the region had no resources.

I have still seen some rebels spawn in Timbuktu (Africa) in my new Moor campaign.

So...what do I have to do to entirely remove those rebel spawns?