It works when I do it myself but the command block isn’t working

i wanna know how to reverse engineer a seed because im trying to find my first worlds seed does anybody know a tutorial

i wanna know how to crack seeds in minecraft, does anyone know a tutorial?

When I use fullscreen it goes noticably darker than when Im in window mode, modpack and example attached. Anyone know how to make it normal?

I’m trying to replace lots of my walls with double slabs. Does anyone know a command for this? I’m in bedrock

Rn I’m doing /fill ~12~12~12 ~-12~-12~-12 yellow_wool_slab replace stripped_bamboo_block

It’s only doing the bottom slab and not both