We will need a little more information to troublshoot this error.

1. What version of RedHorse are you running? (Check the version number in Help >> About)
2. Did you open the ticket from the Contact, the Global Viewer, or the Tickets window?
3. Was the original window you launched the ticket from still open when you saved the ticket or had you for example closed the contact window prior to saving the ticket?

Any other info you can provide that helps us replicate your issue would be great.

Your issue will be difficult to track down. If you can provide click by click steps for the process you use to replicate the error we can repeatedly follow those same steps to see if the error will happen here. The problem is that even you can't replicate the issue without fail every time. Your version is within a version of the latest new version and nothing has changed in the ticket module so an update wouldn't help with the problem.