Horizontal scroll in ListBox doesn't update

[OS923]

I have a ListBox in REALbasic with a custom background and custom text. If I scroll horizontally by clicking in the arrows, then it draws correctly, but if I scroll to the right by clicking in the gray area, then it updates only the last row and only if you see it only partially. I checked it: there's no CellBackgroundPaint or CellTextPaint event for those rows.

[OS923]

If you make a scrollbar instead of setting ScrollBarHorizontal to true then you can use the ValueChanged event to do your own update. I did this by setting cellType to normal for every row. This causes a refresh.