Can confirm, have the same issue on the latest stable build, have to close/open shader graph every time I rename any property in blackboard.
But regarding node previews, I see that they indeed became spheres in the Beta, although that presents another problem in itself — I need regular square 2D node previews, so that I can clearly see tiling and all subsequent nodes.
As soon as I connect Position node, I can’t see what I’m doing with the Rectangle node clearly.
We need a way to change node previews either “per node” or globally.
Im not really talking about swaures vs spheres, though that is a good point. I just dont get any previews at all, just black. Which kinda removes the whole purpose of using this instead of just coding.