Bubble Sort is glitchy

Question

I wonder why last element of array is disappear. I tried change "bubble.Length - 1" to "bubble.Length" but it go out of array
https://code.sololearn.com/cxJvj807r8wP/?ref=app

Answer 1

I am not sure if I am correct, but here is my suggestion:
Try appending the remaining element at the end.