Data Flow Task Generates Blank Excel File - SQL Server Integration Services

I have a process in SSIS that takes information from a table and exports to an xlsx file. It happens that when running the Job through SQL Server Agent, the file is often generated in white, even though it has content in the table (this is not always the case). When this happens I open SSIS and swipe it, and the file is filled in properly. Would you like to know what might be causing this? In the Data Flow Task I have a data conversion between the Data Source and the Excel Destination, which converts the lines to String, but I did not see anything wrong with this task either. Has anyone ever had anything like this?