Describe the bug

M0, this has happened around the time we killed the dragon on last boss.

Do you have an error log of what happened?

Transcriptor.zip

Did you try having DeadlyBossMods as the only enabled addon and everything else (especially something like ElvUI) disabled?
No

Which version of DeadlyBossMods are you using?
1ed4d95
DeadlyBossMods/DeadlyBossMods@1c46377

Was it working in a previous version? If yes, which was the last good one?
Dunno