Hello,
I was having issues with the auto-cleanup in Import Agent 10.3.1.479 not deleting files from some folders and I finally identified what was causing the problem.
If the monitored folder path has a backslash at the end of the path, all the other functionality seems to work fine, but the cleanup rules will not be applied.
For example,
If the path is D:\Folder\Subfolder everything works as expected
However, if the path is D:\Folder\Subfolder\ and the "Delete unmodified files after" value is set, the files will never be deleted.
I'm not sure if it makes a difference, but all of my profiles were also set to retrieve files from subfolders. I don't have any import profiles without that setting so I can't say for sure that the issue occurs in both cases.
I thought this was worth pointing out since the automated cleanup is the only functionality that seems to be affected.