I recommend that you contact Xerox Support to diagnose the problem. There does not appear to be an "easy" fix.
Could this be the solution? https://forum.support.xerox.com/t5/FreeFlow-Core/Change-hot-folder-recovery-interval/m-p/210434#M213...
Hello
Could it be a file access privilege issue?
Simon
Hello,
when posting a CSV file with manifest a file (CSV) stand in hotfolder for few minutes and doesnt proceed.
File is posted by Linux/Python enviroment. When I copy this file to Windows folder and move it again to hotfolder it proceed afster 1 secound.
Any ideas ?