The error is stating that the FTP user does not have permissions to change the filename. This is a change in the 4.0 build of QIE to make sure partial files are not read. To get around this issue add a Custom Apache Camel parameter, readLock=changed, inside the green Source Node. This change will no longer try to rename the file, but check to see if the modified timestamp changed after waiting 1 second before downloading and processing the file.
![](https://www.qvera.com/kb/?qa=blob&qa_blobid=8009928798361980320)