Why isn't the part changing colors?

Well, I tried to fix this problem by adding "wait (1.5)" insted of "then." I am a very, very early scripter.

function
owned = BrickColor.Random()
wait (1.5)
owned = BrickColor.Random()

loop = true 

end 

owned = game.Workspace.owned.BrickColor

Here are a list of things you forgot to do: You forgot to name the function. You forgot to localize and put the local before the script.

local owned = game.Workspace.owned.BrickColor --Make this a habit. Locals almost always go at the beginning of the script.

function BColorC() -- this is the name of the function
owned = BrickColor.Random()
wait (1.5)
owned = BrickColor.Random()
end 

BColorC() -- this calls for the function to start.

This is your script fixed, but if you want it to loop;

local owned = game.Workspace.owned.BrickColor
while wait(1.5) do
owned = BrickColor.Random()
end

while wait() do (what you want the script to do) end

This is a loop that repeats the step every wait()

wait() by itself holds the script for 1/30 of a second before continuing and wait(1.5) holds the script for 1.5 seconds.

Hope this helps :)

Before I begin, please tab your code correctly. :)

There are three problems with your code:

1. You did not set a Name for your Function.

2. You are not changing the BrickColor directly, you are only saving it's Color as a Value for the Variable.

3. What if the Child owner was not existant at the time of execution of the code?

There are solutions to this, however, but, please keep in mind; There is a feature to the Studio, the Output, so please use this to check for errors, alright? :)

To fix this, you must;

1. Give the function a Name.

2. Do not set the Variable to it's BrickColor property directly.

3. Use a chunk that will yield the code until the Child is existant, I recommend the WaitForChild for this operation.

Final result;

local owner = game.Workspace:WaitForChild("owned")

function RandomColour()
	if owner then --Checks if `owner` is existant
		owner.BrickColor = BrickColor.Random() --Changes the BasePart's 'BrickColor' property to a random color
	end
end

RandomColor()

Information left out

1. The if statement is used to check if a Argument (or Condition) is true, equal to another Argument, or is equal (or returns) to true.

2. The WaitForChild method is used to yield a specific code until a Child with the same name as the Argument given to the method is existant, then will stop the yield and let the code execute.

Hope this helped!