New version: the same problem.Why reading the temps so often???????????This is causing the problem. The printer controls the temperatures itself so why reading it every 0.5-1.0 seconds?And why reading nozzle temp and bed tem at the same time? Its a simple change to alternate this.And the single threaded moe model..... makes things so slow on a Mac.Its a pity and there are many Mac users but MC needs some tuning.