Hi,
When I try dropping a piece of ore from my minecart, while still in the mining area, my wolf and the ore continuely refreshes, and doesn't allow me to drop anymore ore, until it has mined back to a full cart. I've tried logging out and logging in again, refreshing the page multiple times, opening a new tab, and removing the wolf from the mining party, but nothing has worked so far.
Also, removing the wolf from the party didn't help, as it still mines without an active wolf, and when the cart is not full and re-freshing all the time, I cannot select a new wolf party member.
Here is a video: