It seems that when I create DMX fixtures in the 1.3 beta, they work fine. Until I switch presets at which point the fixtures go "dark". No more output, and even the preview shows nothing. If I duplicate the fixture it comes back to life. This is not due to opacity or RGB values as the only thing that has to be done to fix it is to recreate the fixture.
Anyone else messing around with the beta experience this?
On a side note, the pixel mapping is an amazing addition!