I recently agreed to trade with someone.  They initialted the trade, I clicked accept and while I was waiting for them to accept, the trade icon was no longer there.  I found I could see the ongoing trade by using the link from my notifications but I think it'd be beneficial to have that trade icon still exist while a pending trade is waiting to be accepted.

Small bug - awesome game.

It's a fair request, I'm busy elsewhere but will add this to the list to sort out as I don't expect it to take too long.