I can confirm that this is definitely a bug. As noted by another user, the cost basis calculation works for the first transaction, but all the others show the cost basis as $0. Also, I have multiple purchase lots and sales, yet the 3922 form I enter seems to be sticky... I enter it for the first sale where it is correct, but then enter it for another sale and it prefills the values from the first sale. When I update them, the entered amounts on the first sale are changed too when I go back to look at it.
