MCBE GLICTES . (I put it on wrong calegrothy im sorry)

Hello! I found a one youtube video and it says Minecraft BE 1.16.1 that still work in 1.16.2.

This is video https://youtu.be/Mib5jJ5Lu6M . Plase fix dupe glitches it ruineds community's and player's world. I hope you fix dupe gtiches soon