Hi @William_Scott – sorry for the slow response here, it’s been a busy week since the launch of 1.2. You can find documentation in our Knowledge Base, which is a work in progress.
Are you saying multi-disc sets that were previously displayed as a single album are now split? Or are these new albums? Checking the import date shown on the Album Detail page would be helpful to confirm whether anything has changed.
If these are new imports, @Greg’s instructions above are correct. And if anything in your setup has changed, let us know that as well.
Also, in the future, we can help resolve issues faster if you give us the details of your setup. Thanks!