Possible Buy Order Bug
 

I've had a couple of instances where I've placed a Buy order for a card, a couple minutes pass, and the Highest Buy Order value goes to 0. The order is still shown as active on the Your Card Orders tab. When I click the Card List tab, the card does not become highlighted or disappear despite the Hide Cards You Own filter being active. Then when I click back to Your Card Order, the order has disappeared. More importantly, the Collection Missions do not recognize that the card(s) have been bought; they can't be redeemed.

Only when I close the game and reopen PT do I then see I have duplicate purchased cards. This has resulted in a decent number of wasted points and I have had to resell the duplicate cards for less than what I paid for my first. Is this a known issue?

Same here. Card order disappears, no notification that card was bought, card doesn't show up in mission screen, nor in duplicates when more buy orders go through unnoticed. Until you exit and re-enter PT as you mentioned.

We have found an issue with one of the notifications not being displayed. Will be fixed in the next client update.