Hello,
Running 28.0.106 on a Windows 10 machine, I occasionally find that MC has crashed. The server starts with Windows, and I usually have the GUI open as well. I usually notice the crash due to the GUI having closed. Clicking on that to restart, the taskbar (bottom right) will usually show two Media Center instances for a small period of time (and then that cleans up).
I sometimes think that perhaps using the living room system (turning the TV, which is yet another DLNA renderer, on and off) has some effect. I have a saved log from this evening, if any JRiver developer wants to provide an email address or some other upload mechanism.
Thanks,
Matt