ok thanks all, I will move global variables inside the function, thanks.

The answer to previous test is [ 1, 2, 1, 1, 3, 1, 0, 0, 0, 0 ], so I think we know what's going on here :>

@pchan2: Move your global variables inside the function.

Read comment(s) below, additionaly make sure you don't mutate input anywhere as it will be reflected by logs, also refrain from using issue tag (it refers to kata's problem, use question instead) unless you're sure fault is not on your side.

The tests are fine. What B1ts was trying to point out is that you probably have a bug in your code.
Just to be clear:

expected '[1,2,1,1,3,1,9,9,1,2,1,1,3,1,9,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0]' to equal '[9,9,1,2,1,1,3,1,9,9,0,0,0,0,0,0,0,0,0,0]'
              ^ this is what your solution produced                                    ^ this is the expected, correct answer

You have [1,2,1,1,3,1] at the beginning of your result; where did those digits come from? A likely case is that you are using global variables and one test is polluting the next test.

I am not sure if there's a misunderstanding.
When I click the ATTEMPT button, on the left hand panel, the system runs a test and the array of numbers above is from that test.
I'm just trying to let Kata know their testing has an error. But I don't know how to report it, if you know how to report the error, please advise, thanks.

there's a mistake in the Kata test because the order of array items should be preserved, instead, the Kata's test below changes the order.

expected '[1,2,1,1,3,1,9,9,1,2,1,1,3,1,9,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0]' to equal '[9,9,1,2,1,1,3,1,9,9,0,0,0,0,0,0,0,0,0,0]'