MCU Functions Expanded in 7.5

I’ve noticed something lately: Often when I load a project, I cannot control anything from the buttons on my MCU Pro. I need to sort of “wake it up” by touching one of the faders. I’m using two extenders, and touching the faders on any of them will wake them all up. The units receive data fine, but only start transmitting after the fader touch.

There are way too many factors involved unfortunately. I built a new computer at the same time as installing 7.5, and I also switched from WinXP to Win7, so any of these factors could cause it. But I’m wondering if anyone else is experiencing the same thing perhaps?