My character suddenly started sliding in a random direction. I was stuck facing a direction and moving the mouse only made it jittery as it kept resetting to the same direction. Nothing seemed to stop it while it happened. It would stop just suddenly, then start up again in a new direction. In the few seconds time I had between movement spasms, I darted inside a shed and logged. I have not been able to reproduce the issue. I was on a mid pop server. The ping upon logging in was 40. I have played on the server many times without server lag or desync.