IB Excel API does not transmit orders automatically

I created an order using the sample API DDE, I changed the 'Transmit' attribute to 1. Yet when the order is sent, it takes something like 6-7 seconds after the order reached TWS for it to be transmitted. Why?

 

Like it remains "pink" for 6 seconds before turning "green"?

 

No, the T button for transmit is available, after a few seconds it turn into C and the order is sent

 

I am not sure but I think it is not related to your DDE links or your order attributes.

Have you tried with different instruments? I remember I had this problem with Copper. I was sending orders on 30 different symbols and copper orders remained stuck for 10 seconds