Affects Version/s: 126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168
Fix Version/s: 22.214.171.124
The bug was encountered on the Obsidian Pinnacle level (at Apocalypse difficulty), specifically in the mansion halls where the player encounters an Evoker or Redstone Golem.
As I met the Evoker boss, the theme music kicked in as normal. With the gear that I had, I managed to slay it within seconds. However, the theme music remained after I left the halls. It even lingered with other ambient sounds and music after the Evoker was killed, including the Arch Illager boss battle.
The manifestation of this bug seems spontaneous and unclear, and I'm uncertain on how to reproduce this bug. Maybe killing the Evoker quickly caused it? Unlikely perhaps...
I've managed to record the gameplay (just after killing the Evoker); here's the link below:
As required, I've looked around in case someone else had reported with a similar case - however I couldn't find anything.
Thanks for your time.