Why do all the parts get removed in my script when I want specific ones to stay?

Solution The script is all good!, only one mistake, and a suggestion. See line 30, Transparency spelled wrong

See line 10, doing #Table gets the size of the table, is more efficient

Your problem may be you aren't naming the parts correctly

while #game.Players:GetPlayers() < 1 do

    --      S E I
    for i = 1, 10, 1 do

        while #game.Players:GetPlayers() < 1 do


        local colours = {"Red","Orange", "Yellow", "Green", "Dark Blue", "Light Blue", "Pink", "Purple"}
        local randomColour = math.random(1,#colours)
        local Parts = game.Workspace.GameParts:GetChildren()

        print("Get ready!")

        wait(5)

        print ("Selecting safe part...")

        wait(2)

        local chosenColour = (colours[randomColour])
        print(colours[randomColour])

        for _, v in pairs(Parts) do
            if v:IsA("Part") and v.Name == chosenColour then
                v.Parent = game.Workspace.GameParts.safeParts 
                print("Part moved")
            elseif v:IsA("Part") then   
                print("Removing parts.")
                v.Transparancy = 1
                v.CanCollide = false
            end
        end

        wait(5)

        print("Parts removed.")

        wait(4)

        --Making the parts visible + can collide
        for i,v in pairs(workspace.GameParts.unsafeParts:GetChildren()) do 
            v.Transparency = 0 
            v.CanCollide = true
        end

        colours[randomColour].Parent = game.Workspace.GameParts.unsafeParts

    end

    print("Game Over! A new round will be starting soon.")

    end
end