I was also blocked by a centurion with quiet menace when the person I fought was not an imperial but was grouped with out of range Imperials, thus causing my death. Is this a bug?

The centurion blocks your path with quiet menace.
PANIC! You couldn't escape!
You dodge an Imperial Centurion's punch.
Your shield blocks an Imperial Centurion's punch.
Dekoren's flaming bite BROILS you!
You parry Dekoren's flaming bite.
The gods protect you from Kuulog.
The gods protect you from a flesh golem.
The gods protect you from a ghoul.
An Imperial Centurion parries your slash.
An Imperial Centurion dodges your slash.
An Imperial Centurion has some small but disgusting cuts.

Dekoren is a Tribunal.

n/t