You are mixing up two things.
The color range changes the color of the data. It does not change the data.
When you change from precipitation to snow, Flowx does load the snow data. You don’t see any change and think it’s precipitation because they look exactly the same for where you live.
I didn’t say “zoom in and out” to fix it. I said:
What I mean is, zoom all the way out until you see the entire world, then flip between precipitation and snow, and you’ll see the data change.
I emphasize this because you are misunderstanding the data. You think the data is wrong but the data is correct.
If you want to change the color for precipitation and for snow, long-press on the scale, change the Scale id in the top drop-down box, and then change the color in second drop-down box. A scale can be used in multiple places, so when you change it, it will change everywhere it’s used. Precipitation and snow use the same Scale id, this is why when you changed the color for snow, it changed for precipitation.