Tried to download and install the latest version (6.7), same issue on and off. If I start on the "green" page (empty), the NextGrid6 on the last page is always gone. If I set the active page to be the last from app start, it works.
Again setting the green page (index 0) active on start, and in code setting the height of the NextGrid6 to something, it seems to work.
It's strange, not sure if the NextGrid "collapses" if there is no data ? (but there is a header).
procedure TForm1.FormCreate(Sender: TObject); begin // this seems to work NextGrid62.Height := 500; end;
Anyway, as long as it's possible to avoid the strange disappearance, I can live with setting the height.
Maybe this gives you something to look for ?