Control M file transfer job file rename issue after transfer

I created a control m AFT job to transfer file from my UNIX server to another UNIX server using SFTP . After the file has been transferred completely:

1. It gets renamed at destination(this change has been implemented in the general tab in advance)
2. The file at source gets deleted
3. If the file is already present at destination it must be overwritten

Issue : Usually the file gets renamed without any issue after complete transfer but sometimes it fails to rename the file at destination even after the complete transfer(job fails with status code 1). I could not find the reason of this failure anywhere. Is it due to the name of the file ? because there are many jobs with same setup that are running without any issue. The file name has no prefix or suffix i.e every time the file gets transferred it must get renamed to 'ApplePie'