this one is a bug for MP 1.12 ?
thank you Rick
my question more about releasing a new bugfix for MP1.12. in few week
That might indicate you had a different problem related to HDMI. If you had the same problem as Rick164, an MP restart should have been enough. Since you never posted log files, we'll never know...after 2 pc restarts, it's looks like v4 fixed my problem also, strange that MP restarts wasnt' enough