Tony,

thanks for looking into it. I can reproduce this almost at will. I will give another shot at explaining the sequence.

1. Grab the scrollbar and drag it to somewhere near the bottom and release the mouse button.
2. While the “Loading” message is still on, grab the scrollbar again and drag it to somewhere near the top.

The important thing is not to let the data load completely before you start the scroll up.

Regards,

Gouri