I’ve noticed that while I have a Roon Remote open (in my case on a Windows 7 laptop) if I stop the Roon Server process (on a 5i7 NUC running Debian), when I start the Roon Server process back up and the remote automatically reconnects to the core, play history is blank. Closing and restarting the remote on the Win7 machine brings it back. This seems like a bug to me but is pretty easy to remedy in my case.