"Portal Loop"

When walking into a nether portal, normally works as supposed to, but when re-entering a second time, sometimes it causes me to fall into a "Portal Loop", as I call it. I believe it's due to the fact that you no-longer spawn outside of the portal, and btw, I'm in creative mode. Once in this portal loop, I cannot get out, and I'm forced to ask someone to come online the server and do /kill for me.

Thanks for reading this.

(BTW, I was not moving anything in the video)