Dark Chunks when exploring since 1.18

I just updated my old 1.16.5 world to 1.18 and then I haven't stopped seeing these random dark spots in all my world, It happens in random chunks, and light sources.
I already tried optimizing my world into 1.18 and erasing cache option but doesn't work.
They continue to happen always even in the same places after I unload the chunks and reload them.
It always happens when exploring new terrain too.
please help is very annoying
Some of them disappear after placing a torch, but some others don't and I don't know what to do.
UPDATE: I updated the world to 1.18.2 release candidate 1 and this still happens I will let one screenshot of the bug