Roch Sanctuary Garden Key Quest

Doing the Roch Sanctuary Garden Key Quest. I’ve encountered what might be a bug. When I’m about to show the Blessed Pattern of Min-Ji Liu to the Unredeemed Roch, after the Prophet has spawned him, the dialogue box suddenly disappears before I can show the pattern and it is not possible to initiate dialogue with Unredeemed Roch again. It’s not possible to start a a new conversation with Prophet Eckel Roch either. He just says “Stop bothering me, human”. I have experienced the same problem when doing the same quest with another toon on another occasion. Has anyone else experienced this problem or know any workaround?

Is your faction with the unredeemed negative maybe? That would cause this.

My standing with The Unredeemed is Neutral (460 faction).