XAxes/YAxes and Bars/Columns not showing

[Darkallek]

Hi. I had question with some troubles. I used modifikated AutoUpdate Sample and adding values in loop(1k-25k values)

`public void AddItem(int ItemValue)
{

    observableValues.Add(new ObservablePoint(index++, ItemValue));
}

public void RemoveItem(int ItemRemove)
{
    if (observableValues.Count < 2) return;

    observableValues.RemoveAt(ItemRemove);
    index--;
}

public void ClearItems()
{
    observableValues.Clear();
    index = 0;
}`

1. if i will replace LineSeries instead of ColumSeries. The Chart not showing collums. (But very very sometime shows collums Correctly) But if mouse over into chart. The value displayed.
2. X a Y Axes Not scalling and displayed . (Sometime scalling and displayed normally)

Image: