What is your record identifier, and is it in the right position? example, If you are looking at the first character in each line then Record Identifier setting should be - starts in position “0”
Try to make a dummy schema and a dummy flat file where the dummy flat file is nothing more than
1,2,3,4,5,6,7,8,9
the schema would be field1, field2, …
then you can play with delimiters setting or the positional settings and note the behavior.
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