I've had two villages created by curing zombie villagers, which gave me pretty neat discounts. After Nether Update all the villagers in both villages lost all their discounts, and if I manage to get a new discount, they forget it very quickly.

I've already searched and found it was a common issue on 1.14.3 (MC-154929), but I have 1.16.1. I've never had this bug before.

Is there a way to fix it?