We’re running a hosted, multisite Discourse setup with two instances (eg X and Y) on the same environment.
On the X instance, clicking the AI chat icon on the homepage creates a proper AI conversation (/discourse-ai/ai-bot/conversations/...) and the AI responds normally.
On the Y instance, clicking the same AI chat icon now creates a regular topic (/t/...) instead, and no AI model name or bot responses appear. This previously worked on Y and stopped recently.
We’ve verified that:
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Both instances are on the same Discourse and discourse-ai versions
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Persona configuration, allowed groups, and models match
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Chat is enabled on both instances
In the database, we also see that new topics on Y are missing some AI-related topic custom fields that exist on the working instance (X).
We’re trying to understand what conditions control whether the AI chat creates a real AI conversation vs. a normal topic, and what could cause this behavior to regress on a single instance.
Has anyone seen similar behavior or have suggestions on what to check?
Thanks in advance.