Jumping on slabs on the skywars pregame lobby results in the anticheat kicking you with the error message: AAABfCd6vDHZiUSNsu89+5N7uGeqiEBDAgoACgY=
In the skywars pregame lobby, you can get kicked by the anticheat if you just hold down your jump button and keep jumping on and off of the wooden slabs.
I play on an IPad Pro 2018 11’, and my minecraft version is 1.17.30.
I have posted a video on my YouTube channel featuring how this happened fully. Link: How to get KICKED on the Hive Network - YouTube