It seems to not be related to views. In other words for one node I can click on the node, get the Node Details Summary page, and export away. On another node, I'll do the same thing and get the stall.
I'm not positive yet - still digging around for commonalities - but I think it might have something to do with whether or not a node is also a SAM-polled asset....that's just total speculation, though.
The node details view has been changed a little since I purchased the product, but nothing crazy - no html customizations or other arcane arts of view manipulation.