I'm facing a problem where an advanced data grid (adg) with a hierarchical collection (~500-1000 rows) doesn't redraw properly after sorting is applied to the underlying collection.
The fun bit is that it isn't reproduceable. The occurance seems to be completely random but somehow related to sorting, as it seems to rear it's head only then (but not always). Scrolling after the adg is messed up doesn't improve it either, but at some point causes null reference exceptions onMouseRollOver. The advanced data grid is in a minimiziable container. If the container is minimized and then restored, the adg looks normal again (ie. redraws correctly). Although this rarely happens on my dev machine it happens more often for our customers, which might indicate that it's more frequent on slower machines. I'm looking for any clue or people who have also experienced this weird behaviour in adg. Thanks.
