Thanks.
I found the dirt pile (I wish I was a bit more visible) when it happened again. I have not dared repro if the cards are hidden when I exit the game and come back.
My rogue lost to a goblin (I think it was). I had to bury an item or weapon, but there was no way to do that.
Exiting the game and coming back in didn't show the list of cards to discard. I had to delete the party and start again. Please investigate and resolve.