Eleven months ago I started a topic on this palm that had collapsing petioles HERE. MattyB suggested it may just be lack of water, even though that seemed unlikely at the time. But I think he may be right. I tried watering more, and the palm has had a chance to expand it's root system. In any event, it seems to be OK now. No more collapsing petioles. You can even look closely and see the last remaining collapsed petiole hanging on, partially trimmed. No more since that last one.