I have made enquires and found that the problem was caused by us. I can assure you that we will take steps to make sure that this kinds of situation cannot arise again.

我已经问清楚了，是我们引起了此次问题。我向您保证，我们会采取错误避免类似情况发生。

youdao

As I noted, this is most certainly a problem but it is not a new problem nor is it a problem caused by either Quantitative Easing or The Twist.

FORBES: The Federal Reserve Produces A Black Swan