Exclude one file extension

I've always used WinSCP to keep my localhost and the server syncronized while I'm working on a project and it has always worked as expected.

This is the .lnk file I've always used
Now I have to exclude .txt files from that sync, because WinSCP causes the logs on my host to be deleted (they are updated on the server but remain blank on localhost, so the sync function deletes them when I start the file).

Reading the documentation I found this solution:
The problem is that now every time I open the link I get the attached message.

It never happened before:

• If I click on "Yes", it does a full synchronization of every single file, even if they are already identical
  
• If I click "No" it does not synchronize anything, and if I change a file it starts syncing the whole folder

What am I doing wrong?

Duplicate post on Stack Overflow:
Exclude one file extension when starting synchronization from WinSCP command-line

As Martin said, the problem has been discussed on Stack Overflow and finally solved