FreeFileSync Forum

Sorry for late reply.
I found the cause of the issue. I had an include filter set. Obviously I did not do that knowingly. It must have been a shortcut I subconsciously executed.
Thank you Plerry and xCSxXenon for trying to help me. In fact it was the recommendation of Plerry why I checked the filter ...

No. Neither of the above two cases.
For testing, I created two folders - one empty and another containing a text doccument named Test.txt and compared them. It says the same - no files to sync.
I checked the exclusion list to be sure that I accidentally put some paths there but no - they are same as ...

There is a file in one location but not in the other but still says no files to sync.