When I run the program (my program extends VariableTimestepGame) , the billboard is invisible. I even tried to update the node, similar to what you have to do with Text, but no luck. Does anybody knows whats happening :?
do you have other things attached to rootnode and do they have bounds set? You may need to setForceView(true) on rootnode and guinode if so. Generally I keep my gui stuff seperate from rootnode to avoid issues like this.