Autolayout issue


I’m testing the auto-layout API and I don’t know what could be happening here…
As you can see in the video the UL node is filling its container but the direct children are not, although the same auto-layout properties are being applied. The properties applied for the UL and Panel nodes are:

node.layoutMode = 'VERTICAL';
node.layoutAlign = 'STRETCH';
node.counterAxisSizingMode = 'FIXED';

I’ve tried everything without any success! How can I get both UL and Panel nodes to fill their container?