I launch my server and everything was black

ok so when i launch the new version (20w22a) in minecraft , i joined to my singleplayer world and then everything was black.. now i dont know if this just a glitch because something happend while it was loading or something else but i wanted to let you guys know.

What I expected to happen was...:
To join in the new Version of minecraft nether update

What actually happened was...:
My world just turned to black

Steps to Reproduce:
1. I dont know how that just happened , i just joined the new version of it on my minecraft server
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