Oh for sure either the shifter alignment needs adjustment...or you have some warn parts on the shifter rod...or the shifter fork inside the transmission is bent. Do this first: Loosen the lock nut on the shifter knob and screw it down one more turn. This will disable the shift gate's detent lock. Now the only detent is from the transmission. Try it like you did in the video. If it stops doing it, align the shifter by adjusting the shaft. If it still does it, then the problem is in the transmission...sorry. Means someone at some time shifted it while it was still moving or with engine power on.