Downloading files with ColdFusion 2016 Update 10

I have a situation where an excel file is created on the server via ColdFusion and if I have it downloaded to my local machine, via my code, I will get what a appears to be a previous version of the file. If I copy the file from the server to my local machine it is what I expected. The file should have 30 rows but the downloaded version has 60 rows.

I have watched the file change the time stamp on the server during the code running so I know the file was changed.

I have tested the code on 2018 on a different server without this happening. Trying to determine if there is a server setting or a issue in 2016.

Any ideas.