Web Cam FTP update (2)

I just want to find out if others are having this happen. I have already contacted Brian.

At the moment the main FTP happens at 6AM, Noon, 6PM, midnight.
The Webcam is set to update every hour. But what actually happens is the main update also happens every hour. If I turn the webcam FTP off then the main update does work as above, four times per day.