Orders will fill or partially fill when there are matching orders. Orders not fill yet or the remaining part of a partially filled order will stay as Open Order waiting for matching orders.
Assets in these open order will display as Locked asset to you.
If you notice your asset in Locked status and want to release the asset, you may cancel these orders.
For how to view and cancel open order, check article https://gateio.io/help/guide/16559