Stream Lookup don't work

I am using stream look up to find values ​​in a given excel sheet. However, there are values ​​that it returns true, and values ​​that exist that it returns false. Why does it happen?

I compare the name and value columns in my spreadsheet according to the parameters passed by the user, to see if it exists or not. There are values ​​that I pass and it seems fine, and there are values ​​that I pass that exist in the spreadsheet, but it returns false

Hi! Vinicius

Please can you check the data type in the step. Please check the Process Studio logfile for the exact reason.