Unable to see changes in a simple dynamic graph

[Infeligo]

I am trying to open a GEXF graph with dynamic attribute values just as described on the official wiki:
https://wiki.gephi.org/index.php/Import_Dynamic_Data

The graph I am using is from GEXF primer:
http://gexf.net/data/dynamics_openintervals.gexf

After opening, I enable timeline and change the interval to one year. Then I setup ranking, making node size proportional to the "value" attribute. When I click "Apply", nodes get resized. However, when I run animation, nothing happens. If I stop the animation at some point and click "Apply" in the ranking tool panel, the node gets resized accordingly. It seems that I'm missing something here, but what?

How do I do proper animation of a dynamic graph?

[mars0i]

To the left of the "Apply" button, there's a very small icon that looks like a link in a chain. (That's what it looks like to me, anyway.) To cause the node size to change dynamically, you have to click that icon, so that the region around it becomes "depressed", and then also click on the "Apply" button--which now should have changed to "Auto Apply".