I’m sorry for the delay in replying!
You may want to upgrade to osTicket Awesome 1.10.1 to address the Dashboard graph issue.
If you prefer to stick with RC.2 you should try upgrading to osTicket-Awesome-1.10-RC.2-v1.13.
If you still have an issue with the Dashboard after upgrading, please post a screenshot and I will try to figure out what the problem is.
Regarding the ‘ticket remains closed’ issue… it is actually osTicket’s default behavior. So it isn’t actually an issue, it is by design.