Thank you hv ! This is so super helpful. I put the following code at the top of my test script, included the diagnostic process warnings, and now the test script works fine. Also, It makes perfect sense that the debugger interacts with STDIN. So, unfortunately, I am still stuck with my original problem so I will continue to make the test script look like my production script. Thank you ! 

if (-t STDIN) {
    dumpTable();
}

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In reply to Re^3: IO::Select woes by Anonymous Monk
in thread IO::Select woes by Anonymous Monk

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