So, i spend most of the time playing in a flat word that world hasn't any pillager outpost. That isn't the problem the problem is that i spawn some pillagers. when i kill the leader i get the "bad omen" effect (as always) and a raid starts all the iron golems and i kill the pillagers but then the raid recharges and there are no pillagers...idk if is by the lafg or something.
The raids don't work for the time they recharge (or whatever happens)
Please check if that's still an issue for you in the latest 1.14 (pre-)release.