Hello @Mark_Dyrbye,
Thanks for contacting support, I’d be happy to assist here. Can you please provide a screenshot of your Roon Settings -> Storage tab? It should look something like this:
It seems to me that you may have been connected to the wrong Core when you dragged-and-dropped the tracks, copying everything once more to the Laptop’s storage instead of the intended iMac’s storage. At the end of this troubleshooting process, which core do you wish use in your setup here, the Laptop or the iMac?
Do you notice duplicates of the albums themselves in the storage folder? Can you please provide a screenshot if so? Please let me know when possible.
Thanks,
Noris