It sounds like you have different version of Highcharts - maybe some old version has that kind of bug?
Anyway, try to set color: null
directly. See:
plotOptions: {
series: {
allowPointSelect: true,
states: {
select : {
color: null
}
}
}
},
If this won't help, the only solution may be to set for each point directly selected color:
series: [{
data: [{
y: 29.9,
states: {
select: {
color: 'red'
}
}
}, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
}]