You have two EnterLong statements in the image you provided, there is one in the Print and one above it. You would need to remove the Print and that should remove the duplicate order.
If you are trying to Print the orders information, you should print before the EnterLong statement with only the information you need but without EnterLong() like the following:
Print("My Entry Quanity: " + myQuantity); EnterLong(myQuantity, @"");
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