I've been trying a few things on a demo unit running the latest firmware.
I have one RGBW fixture patched. I have 'Preset 1' as that fixture at 100% and red. I have the startup behavior for the space as Preset 1.
If I cycle the power, it doesn't startup with that Preset. All levels are at 0.
Sorry you are running into issues. On what device are you cycling power? Is there an output device attached?
Cycling power to the EchoTouch. It's outputting DMX values to a DMXcat for testing.