I have a script that is meant to sort data by a certain column. It sorts the data, but the output is absent of the first line of data in the source file! Can anyone tell me what's wrong here? Thanks!

open (SOURCE, "<src_data.csv") or die "Can't open file";
open (OUTPUT, ">output_data.csv") or die "Can't create load file";

my $sheet;
my $count = -1;

my $csv = Text::CSV->new ({binary=>1}) or die "Cannot use CSV: ".Text:
+:CSV->error_diag ();

my @rows = ();
while (my $row = $csv->getline(*SOURCE)){
    push @rows, $row;
}
 
my $header = shift @rows;

foreach my $row (sort {$a->[1] cmp $b->[1]} @rows){
    print OUTPUT join(',', @$row), "\n";
}
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