finishTransaction: isn't removing the transaction from queue...

I have several non-consumable inApps.

The payment is done once (correctly: SKPaymentTransactionStatePurchased), then the download of the inApp is correctly done (and finished) and finnaly I call

[[SKPaymentQueue defaultQueue] finishTransaction:transaction];

however the transactions remain in the queue... why? aren't they supposed to be removed? also the following isn't being called:

- (void)paymentQueue:(SKPaymentQueue *)queue removedTransactions:(NSArray *)transactions

I've also tried to implement in my finishtransaction method:

for (SK开发者_开发知识库PaymentTransaction *aTransaction in [[SKPaymentQueue defaultQueue] transactions])
{
    [[SKPaymentQueue defaultQueue] finishTransaction:aTransaction];
}

(in case the transaction object i was trying to finish wasn't the correct one, but this also fails to remove the transactions - well most of the times, sometimes it does remove but the behaviour is inconsistent, I can't figure out why they are removed the few times they are actually removed)

From your question, it appears that you are trying to download something when purchase completes. In this case, you should probably call finishTransaction before the download starts.