Tell HN: Fable guardrails trigger on random questions

I have Fable guardrails trigger on seemingly innocuous questions. Two examples: a) What is Echium b)I want you to deep dive on coffee and it’s effect on health, cognition and longevity. The output should be something that tells you areas where the evidence is strong and where it is weak but plausible and where there is no strong evidence. Does anyone know why this happens? I have many such examples where it will randomly switch models.