There is a problem in the resource group avail chart. It is not actually showing the chart for the graph but rather a resource, if it exists, with the group's ID. To see: Nav to an autogroup. It will not represent correctly the group avail for its members (unless of course it's by chance and everything is green, for example). It may even generate a server-side exception if the id does not map to an actual resource.
This is likely the cause of Bug 1000153.
master commit 799a0fe5533b87414398da7ba68fddf49f6e5893 Author: Jay Shaughnessy <jshaughn> Date: Thu Jan 23 12:41:24 2014 -0500 Ensure we use the group version of the getAvailability code. *** Note: Due to some gui code re-arranging, any requested backport of this fix may be easier by hand than by cherry-pick. ***
Bulk closing of 4.10 issues. If an issue is not solved for you, please open a new BZ (or clone the existing one) with a version designator of 4.10.