I am not sure is Flux's auto saving process having some issue? or graphics driver issue? When I some time refresh my web page, it alway can't save my project. And when I try to restore my pcb, he restore can only restore my trace but not the component. I think these issue is kind of same with my previous issue. This time, it only restore my top layer line, and if I update any one component, it will mass up all my initial component. the place of the component and the net all do not match with what i initially have