Pillager Outpost not spawning in new chunk

Put the summary of the bug you're having here

What I expected to happen was...:
Pillager Outpost spawning at this location

What actually happened was...:
/locate d the Outpost, but nothing there except 2 floating banners where the Outpost should have been. Pillagers still spawned, however. As you can see in the SS the mountain and a portion of the plains are unnaturally cut in half where the Outpost should have been.

Steps to Reproduce:
1. Loaded a new chunk where the Outpost was supposed to be
2. Killed Pillagers surrounding there
3. No Outpost