Since I upgraded to 4.8, I cannot stop orion with CTRL-C anymore. I can't stop using the shutdown command either. When I do so, I get a message: "Shutting down..." But it never actually shuts down. This only happens after I start using my application. If I just start orion and right after do a CTRL-C, it will shutdown. Could it be some resources that are locking orion? Any ideas?