5.15.4 -> 5.15.5, some labels disappeared from axes

        // Label overlap detection - compensate one pixel for rounding errors.
        // This is not needed for color axis as its labels don't collide with other labels
        if ((labelItem->pos().x() < last_label_max_x && labelItem->toPlainText() == ellipsis)
            || forceHide
            || (labelItem->pos().x() + (widthDiff / 2.0))       < (axisRect.left() - 1.0)    // This test comes out true!!!
            || (labelItem->pos().x() + (widthDiff / 2.0) - 1.0) > axisRect.right()) {
            if (axis()->type() != QAbstractAxis::AxisTypeColor)
                labelItem->setVisible(false);
        } else {
            labelItem->setVisible(true);
            last_label_max_x = boundingRect.width() + labelItem->pos().x();
        }