X1 is brutal. What works on one box might not work on the next. Problem being is they have 4 manufactures for the same box so things get wonky. On top of that sometimes box updates botch the commands do you get these skips. Contorl4 released a driver this year that seems to fix it.
I know your not using IR but I figured it was worth mentioning.
The ONLY box that I have had consistent luck with is the rack mount box. That one seems to be the most solid and consistent!
The Bitterness of Poor Quality is Remembered Long after the Sweetness of Price is Forgotten! - Benjamin Franklin
