Seeds are completely ranom even when you manually type a seed.

When I go use a seed I like  to use, it no longer loads up in this version. It loads up just fine in 20w19a but not 20w20a. Seems like it ignores manually typed in seeds and just loads up a random world as if I didnt type in a seed. I tried loading up a set seed 5 different times, all loaded up in a completely different world.