FTX US Derivatives - Is That Correct?

I believe FTX US derivatives led your ex may even be up and running right now. Confused why FTX US is not processing customer withdrawals right now? I would think it should be because I believe to my knowledge that it could be and could make all Americans 100% hold from this. My understanding is I believe Genesis tried to call in a large number of loans from Alameda. That closed down a lot of positions that Alameda had opened with Genesis and other trading desks. And that's what I was thinking at the time.