That was a rough upgrade! I ran the force update, and it failed at 18% on the overworld. No issues with the Nether or End. Spigot started the world, so I had a look. Villagers and other named mobs are missing from a few areas. When I added villagers back to empty villages, the villagers acted like the workstations were in use. I've had to place new workstations to get the new villagers busy.