Minecraft can't load world/server with certain resource pack enabled

Minecraft cannot load the world.
When trying to enter the world/create a new one, Minecraft stops loading the world at the moment of "Appearance is taking a long time to load. Proceeding with world generation..."
I've been waiting for over an hour, I don't think I have such a bad SSD and CPU that it would work that badly. The music continues to play, on the latest stable version of Minecraft everything is fine.
My PC:
CPU - AMD Ryzen 3 2200U
RAM - 8 GB
GPU - AMD Radeon Vega 3 Graphics 1 GB