Thank you for the follow up @AndyP and sharing the results of the proposed test, very appreciated.
Continuing forward, I have re-enabled diagnostics on your account so we can see what is happening after the fresh install on the MBP remote. As before this action will be fulfilled when the application is active on both the core machine and the remote. I will confirm when the update diagnostics have reached our servers.
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Andy, out of curiosity, the Roon icon is docked, correct? And you are not launching say via: “Applications”, “Spotlight”, or “Launchpad”?
-Eric