Andy,
The text shown in the indexlabel is getting aligned either to the left, right or center & the indexLabelTextAlign property seems to be working fine as shared in the screenshot. If you are trying to place indexlabel to the left of the marker, that’s not possible as of now. Indexlabels are placed to the center of the marker but the text within the indexlabel can be aligned to the left / right / center whenever the text is wrapped into multiple lines.
—
Vishwas R
Team CanvasJS