[ChromatiCraft] Crystal Music Temple causes CME upon completion

[Gronglegrowth]

When you successfully start the Crystal Music Temple ritual, it works, but when the song ends, it results in a CME: crash-2024-11-07_17.00.23-server.txt

Noticed this first in a custom pack on a server, and then checked in DragonRealm to see if it still occurs - it does.