The Congo is still, well, not really Beta anymore, but I have 2 friends who work for
ETC as beta testers and they are still finding things that don't work with the Congo Jr and sending word over to ETC.
My advice would be to back up early and often, contact ETC, let them know, and they make thank you for finding a new bug.
(Of course, they haven't had it crash much, it may be an issue more personal to your console).