I saw this happen to a couple of people today. Somehow the GUI ends up with some NaN's for e.g. model position/scale (not sure how this is triggered). Then this seems to freeze up a bunch of other things in the GUI (can't scroll around, can't open javaviz, things like that). Restarting the GUI fixes the problem (by eliminating the NaNs). Ideally we would prevent the NaN's from showing up in the first place, but we should also probably have something in place to handle them more gracefully if they do appear.
I saw this happen to a couple of people today. Somehow the GUI ends up with some NaN's for e.g. model position/scale (not sure how this is triggered). Then this seems to freeze up a bunch of other things in the GUI (can't scroll around, can't open javaviz, things like that). Restarting the GUI fixes the problem (by eliminating the NaNs). Ideally we would prevent the NaN's from showing up in the first place, but we should also probably have something in place to handle them more gracefully if they do appear.