After using Gaea for a while nodes stop updating automatically. To see the result of my changes I have to manually update them using the "Force a Refresh" button at the bottom of the graph editor. This slows down the workflow immensely.
After a while, the auto-refresh comes back on and goes again. I have no idea what causes this so I can't really write down the steps to reproduce this.
I've attached a Gaea 220.127.116.11 scene on which this happens, in case it's useful. It's not a small network but it's not massively complex either.