Pillagers don't respawn in the pillager outposts in flat worlds which makes it impossible (or extremely difficult) to make raid farms in Skyblock worlds.

How to reproduce:
1. create a normal world
2. locate an outpost
3. place or break a block in the chunk where the outpost is in
4. change the generator of the world from 1 to 2
5. open the world and test if pillagers respawn

The expected result:
pillagers will spawn in the outpost

The noticed result:
No Pillagers Spawn at All !

this issue might not be important for a lot of people since not everyone does play Skyblock in bedrock anyway.
but it is so important for me and a bunch of my friends. i hope you fix this issue and thanks a lot.