When clicking on a new time-scale (zoom) or start/end-time or just leaving the graphs auto-updating, a "spinning circle of death" appears and the graph never reloads. Reloading the page shows the new data, but the auto-update is still broken.

this is due to some calls in jQuery being deprecated. In short, the following

http://api.jquery.com/error/
and here:

http://stackoverflow.com/questions/37738732/jquery-3-0-url-indexof-error

which states the following:

I've come across the same issue on my application. After some digging, I found this statement in jQuery blog,

.load, .unload, and .error, deprecated since jQuery 1.8, are no more. Use .on() to register listeners.

The fix is simple, in flickerfreescreen.js replace these two calls:

                                        .on("error", function() {
                                                screen.error++;
                                                window.flickerfreeScreen.calculateReRefresh(id);
                                        })
                                        .on("load", function() {
                                                if (screen.error > 0) {
                                                        return;
                                                }

the original code used .error(function(){ and .load(function(){

Hope it helps!