Probably not related to your problem, but I noticed:

$envscript 2>&1 > expect.out;
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Assuming you want to fold stdout/stderr into file expect.out, you've got the order wrong. It should be written as:

$envscript > expect.out 2>&1;
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To see what I mean, run the following commands:

perl -le "print STDERR q{to-stderr};print STDOUT q{to-stdout}" 2>&1 >f
+.tmp
perl -le "print STDERR q{to-stderr};print STDOUT q{to-stdout}" >f.tmp 
+2>&1
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and note the difference.