There's no way to change that globally, unfortunately...
Unless you're saving from a single preset and modifying copies of it, I'm not sure why you're getting a single Snapshot which is defaulting to anything other than the non-dimming Red.
That could actually point to an issue in the firmware or even hardware.
But try changing it on one preset and see if it 'sticks':
- Go to the preset you want to change.
- Push in the Preset knob/button.
- From the resulting screen, turn knob 5 to select the Snapshot you want to change (assuming it's not already on the correct one).
- Once selected, push knob 6 ('Rename Snapshot').
- Knob 5 ('LED color') can now be rotated to cycle through the LED colours. 'Auto-color' will get it back to the default red. NOTE: IF YOU MANUALLY SELECT RED, YOU WON'T GET THE 'DEFAULT' BEHAVIOR; YOU'LL GET RED = ON & DIM RED = OFF - a very handy feature if you want to show with DIM LEDS the available Snapshots at a glance, even if you want them to remain Red.
- Select OK (Knob 6).
- Save your results.
- If required, change back to the Snapshot you want to Default to when selecting that preset, and re-save after that.
See if that works AND stays as you intend it.
If not, there's a deeper issue at work here.
If this works, you'll have to go through this process on each preset you want to change in this manner.