Mac Book Pro EAC violation every time I try to log in after 6/6/19 wipe

[Marmite on Toast]

I have played rust for years now on my Mac Pro, with limited issues. Annoying I can not get on to any server this this wipe after the last update as the game states EAC violation. The game was running perfectly yesterday and was really keen to go hard for the fresh wipe? is anyone else having similar issues?

[NickLoj!]

I was just playing on my windows PC fine, but tried to log in to a server on my MacBook Pro and am having the same issues. "Disconnected: EAC Violation"