FTP Sync not working properly

[mega]

Hi,

I am using BestSync FTP 7.0.27 64bit under Win7-64bit Ultimate and I set up a FTP sync from my internal HDDs to my NAS (QNap TS-412). The sync generally works at the scheduled times but now I've noticed (after some months to be honest) that some files/folders are skipped during sync and they were never synced. I did a preview of the task and I saw here and there the error "501 invalid number of arguments". What is it? How can I prevent it to happen and therefore allow the sync to really work for each single file/folder? Also shouldn't the software give a warning about this kind of error? At end of each sync I got the result "Success: xx Failed: 0" when obviously there were failed attempts to sync some files.

Thanks.
GM

[RiseFly]

I noticed that you are using an old version, please update to the latest version and start the preview again to see if the problem has been resolved.