quality rrd graphs do not automatically refresh
With the RRD page left open on the quality graphs these do not automatically refresh. Perhaps check if jQuery is still being called.
Normally these should be refreshed every 5 minutes iirc. Perhaps the date time end value is not being forwarded or not being updated after tge load of the page. This end time value is passed on to the img.php for the time span.
Manually refreshing the page reload the graphs.