I haave a ClientDataset connected a DBGrid. Inserting a record works ok, but appending makes the selected row blank. The content reappers, when the row is selected.
I have attached a sample where the issue is reproducable.
GridTest.zip (7.2 KB)
WebDBGrid1.Refresh; at least updates the empty columns, however, there still is something wrong with the drawing, as there are now two selected cells.
No comment on this for 11 days? 
I am out of office at this moment and back later this week and will catch up with support upon return.
Tx for the info, Bruno. I´ll wait.
We have applied an improvement for this. The next update will have this improvement.
Great to hear!