Model in JavaScript RAG Web Apps with LlamaIndex seems not to be able to "read" last paragraphs

I’ve noticed that the data (abramov.txt) has a line saying “I got hooked on Visual Basic”, but when I ask about it (“Does the author ever used Visual Basic?”) The model replies: “Based on the context information provided, there is no mention of the author ever using Visual Basic. The author primarily worked with coding languages such as JavaScript, iOS development, and React.”

Why this happens?

Thank you!

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