The synchronise button should be running a VSS script called macro1.py, in the VSS folder.

Instead of running that from the Python palette button, try running it directly from the File -> Run Python Script menu, and see if anything happens.

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)