FireDAC FDSCript error while executing last script - delphi

Question

When I execute the following code I get an error when executing the last script.
The error is:
"Cannot open the file "c:\FiredacDemo\las.sql"
I cannot understand why it executes fine named scripts #fdrop_dables, #first, #second and only for the very last it tries to executes instead an sql file.
procedure TForm1.btnMasterScriptClick(Sender: TObject);
begin
with FDScript.SQLScripts do begin
Clear;
with Add do begin
Name := 'root';
SQL.Add('#drop_tables');
SQL.Add('#first');
SQL.Add('#second');
SQL.Add('#last');
end;
with Add do begin
Name := 'drop_tables';
SQL.Add('drop TABLE T1;');
SQL.Add('drop TABLE T2;');
SQL.Add('drop TABLE T3;');
SQL.Add('drop TABLE T4;');
end;
with Add do begin
Name := 'first';
SQL.Add('CREATE TABLE T1 (ID INTEGER NOT NULL, NAME VARCHAR(50), CREATED TIMESTAMP);');
SQL.Add('CREATE TABLE T2 (ID INTEGER NOT NULL, NAME VARCHAR(50), CREATED TIMESTAMP);');
end;
with Add do begin
Name := 'second';
SQL.Add('CREATE TABLE T3 (ID INTEGER NOT NULL, NAME VARCHAR(50), CREATED TIMESTAMP);');
SQL.Add('CREATE TABLE T4 (ID INTEGER NOT NULL, NAME VARCHAR(50), CREATED TIMESTAMP);');
end;
with Add do begin
Name := 'last';
SQL.Add(format('INSERT INTO T1 (ID, FNAME, CREATED) VALUES(%d, %s, current_timestamp);', [ 1, 'fabio', now]));
SQL.Add('commit;');
end;
end;
FDScript.ValidateAll;
FDScript.ExecuteAll;
end;
EDIT: This one works!
procedure TForm1.btnMasterScriptClick(Sender: TObject);
begin
FDScript.SQLScriptFileName := '';
FDScript.Arguments.Clear;
with FDScript.SQLScripts do begin
Clear;
with Add do begin
Name := 'root';
SQL.Add('#drop_tables');
SQL.Add('#first_script');
SQL.Add('#second_script');
SQL.Add('#third_script');
SQL.Add('#last_script');
SQL.Add('#'); // Added this -> see below
end;
with Add do begin
Name := 'drop_tables';
SQL.Add('drop TABLE T1;');
SQL.Add('drop TABLE T2;');
SQL.Add('drop TABLE T3;');
SQL.Add('drop TABLE T4;');
end;
with Add do begin
Name := 'first_script';
SQL.Add('CREATE TABLE T1 (ID INTEGER NOT NULL, NAME VARCHAR(50), CREATED TIMESTAMP);');
SQL.Add('CREATE TABLE T2 (ID INTEGER NOT NULL, NAME VARCHAR(50), CREATED TIMESTAMP);');
end;
with Add do begin
Name := 'second_script';
SQL.Add('CREATE TABLE T3 (ID INTEGER NOT NULL, NAME VARCHAR(50), CREATED TIMESTAMP);');
SQL.Add('CREATE TABLE T4 (ID INTEGER NOT NULL, NAME VARCHAR(50), CREATED TIMESTAMP);');
end;
with Add do begin
Name := 'third_script';
SQL.Add(Format('INSERT INTO T1 (ID, NAME) VALUES(%d, %s);', [ 1, '''fabio''']));
end;
with Add do begin
Name := 'last_script';
SQL.Add(Format('INSERT INTO T1 (ID, NAME) VALUES(%d, %s);', [ 2, '''stefano''']));
end;
with Add do begin // addes this (see above)
Name := ''; // please note the empty '' Name
end; //
end;
FDScript.ValidateAll;
FDScript.ExecuteAll;
end;