You will see the comment says all tracks are by Walton. In fact, only the first 4 tracks are by him; the fifth is by Vaughan Williams.
Hi @James_Antognini. This album is unidentified by Roon. The incorrect composer attribution for The Wasps Overture must be in your file tags…
You’re right: Somehow I marked all files with Walton as composer. A fresh rip of the CD shows only the first 4 by Walton, the fifth by Vaughan Williams.