[Lazarus] New AutoSize issue

[faber]

I wonder the bad sequence (order):
my code
 debugln('set sr1 to visible true');
   SR1.Visible:=true;
   SG1.Visible:=false;
   if Assigned(SR1) AND SR1.Visible then begin
      OptsR.Parent:=SR1;
      OptsR.Top:=1;
      OptsR.Left:=11;
      OptsR.ArrowType:=atDown;
      OptsR.Height:=19;
      OptsR.Width:=19;
      OptsR.Visible:=true;
   end;
   StopA.Visible:=false;

and debug:
   hide StopA
   debugln('set sr1 to visible true');
   hide :TStringGrid1 --- SG1 ?
   debug from onresize
   show Arrow
   show SR1


why show SR1 is on the end ? In code I set SR1 to visible at the beginning.
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