During a live performance with Mainstage my computer (Macbook Pro) unfortunately fell down on the ground, but luckily nothing happened other that my Mainstage-file is now behaving a bit strange.
There are two midi keyboards assigned to the setup and the faders, sliders and knobs of one of the keyboards are suddenly all assigned to the master volume fader. There are no problem with the faders, sliders and knobs if I create a new Mainstage-file, and I can assign them as I will. I´v checked all the USB ports of the computer and they all work fine.
It seems like the Mainstage-file have been corrupted because of the fall, but I dont know if that is possible.