I just updated to 1.5 Build 333 (64-bit). Both devices show up under Networked->Chromecast on the Settings->Audio tab in Roon. When I click ‘enable’, nothing changes in the Roon UI and I get a Roon logo on both of my Chromecast devices with a spinning wheel:
Thanks for contacting support, I’d be happy to take a look over this issue with you. Can you please try to restart both the Roon Core and the Mi Box and see if the issue still persists after a reboot for both devices? Please let me know when possible.
I have gone ahead and enabled diagnostics mode on your account and what that will do is next time your core is active, a set of logs will automatically be generated and uploaded to our servers. After receiving those said logs I will submit them to QA for further analysis to see what could be going wrong here. I appreciate your patience while this analysis occurs and will let you know as soon as QA has completed their report and has passed it over to me.
I have just received a reply from the QA team regarding the logs. They have said that you seem to be missing the Chromecast webroot plugin from your installation somehow. They have asked me to advise you to create a backup of your library and reinstall the Roon Core application. Please let me know after you have done so and if you are facing the same issue afterwards.