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I closed my dotusdt position, it added the pnl to my wallet balance but still won't let me withdraw. I've tried using the app and the mobile website on chrome
It should be available to transfer. Can you show us after you click the transfer and it will show list of able to transfer. It should be USDT and you should select from FUTURES to SPOT. Maybe the from and destination are wrong, double check it. I don't think you got some error or bugs in your account.