I simply cant get it to work.. why is that happening??

Hello Gigaset39, It didn't take me long to figure out the problem, and after testing it out on Studio, It seems to be working:

Your Code:

if randomAll.BrickColor.Color == BrickColor.new("New Yeller") then
 P.CanCollide = false 
end

My Solution:

if randomAll.BrickColor == BrickColor.new("New Yeller") then
 P.CanCollide = false 
end

As you can see the only thing I did was remove "Color" from "BrickColor"

"Color" is a property of "BrickColor", yet it also is a property of Part

And by the way, remember to add a wait() in your loops

And that's it!

On the other side, if you for some reason wanted to change the Color Property and not the BrickColor property, it'd be different, as you don't use "BrickColor.new" on the Color Property, instead, It would be something like this:

randomAll.Color = Color3.new(248, 248, 248)

But that isn't necessary on this case

Hope this helps!

Full Code:

 local P = workspace.Plataform
 local randomAll = workspace.Colour.Randomizer  --- Colour is a folder and Randomizer is a part


while true do
wait(0.01)

if randomAll.BrickColor == BrickColor.new("New Yeller") then
 P.CanCollide = false 
end

 if randomAll.BrickColor == BrickColor.new("Really black") then
   P.CanCollide = false 
 end

 end