My transaction line in the Purchase transactions screen has a red cross status ?!

Cause 1: The trader has placed a sell order. However, the price of crypto has fallen so quickly that the sell order did not find a buyer to be sold (in whole or in part).

The trader now continues to wait for the settlement of the total sale. Usually the exchange has already sold part of your order (they have the right to sell your order in pieces (matching supply and demand)). Should the price rise again and reach the level of the sell order, the residual order will still be sold and settled.

If you don't want to wait for that, you can press the red cross and have the sell order processed. In that case, the trader will cut your order into 2 parts: the sold part, which appears in your sell transactions, and the unsold part, which appears in buy transactions. Both orders have the same order number.

The order is not (completely) sold because our trader gives market orders. That is, it gives a fixed price at which to sell. The exchange may not deviate from this. This situation of partial sale can arise in the case of coins that are not much traded in, if the price falls quickly.

Cause 2: The trader has placed a buy order, which cannot be completely filled by the exchange due to the rapid rise in the price. As long as the trader is waiting for the order to be settled, there is a red cross in the order line. Only when the price starts to fall again, the exchange will do the remaining settlement. Here too, the following applies: you can instruct the trader to settle things by pressing the red cross. If the trader has not been able to purchase anything, it will appear as a 'zero transaction' in the sell screen. If the trader has bought a part, the transaction will be adjusted as what has been purchased and it will remain visible in the purchase screen.