'Stata spmap legend key symbol and legend text off not aligned

I am creating a filled geographical map. I think I have what I want, but for some unexplained reasons, the legend key and the legend text are not in the same line. Would anyone know what is the issue? I have put a blue line at the bottom of the legend to show that the legend text and key symbols are not aligned. See here in this map

Additionally, I found it very odd that I had to start the labelling from "2" instead of "1". What could be the reason for that?

This is the code used to generate the map:

spmap predictions using "$shape/district polygons.dta", ///
id(id)  ///
title("TEST predictions") ///
label(data("district predictions.dta")  ///
    xcoord(x_coord) ycoord(y_coord) label(DISTRICT) /// 
    pos(0) size(*0.9))  ///
clmethod(custom)    ///
clbreaks(0 (5000) 30000)    ///
fcolor($colorscale_stata)   ///
legorder(lohi)  ///
legend(pos(11) col(1) rowgap(0.3) size(*1.6) margin(l = 0.6 b = -0.2)   ///
    symysize(*0.9)  alignment(top)  ///
    label(2 "0 to 5000")    ///
    label(3 "5000 to 10000")    ///
    label(4 "10000 to 15000")   ///
    label(5 "15000 to 20000")   ///
    label(6 "20000 to 25000")   ///
    label(7 "25000+")   ///
    title("PREDICTIONS", pos(11) size(4)))
stata


Solution 1:[1]

Possibly because label 1 is intended for missing data

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Carlos Mangunsong

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