Gift Cards, applied but not zeroed out!?

[elightbox]

We use the rewards program and customers redeem reward points for Gift Cards.

A few days ago a customer redeem twelve $10 gift cards. The next day he placed a large order, redeemed the ten gift cards, and paid the balance with PayPal express.

The finalized order on the admin shows a balance due of $120! and it shows the gift cards as used!
The Gift Cards themselves still show a $10 value each!

We use Stone Edge, and the order downloaded as usual, showing the cards were applied and with no balance due.
I don't know what the order status was. I don't know if SE downloads orders with a status other than NEW.

We only discovered the "balance due" by viewing the order on the admin. Support discovered that the cards were not zeroed out.

I have a ticket open to investigate this, however it is scary to see that gift cards were used on an order but they still show the original balance. I placed a couple of test orders and this did not happen again, but I don't know if this ever happened in the past and was not caught, and I have no idea how to check!
If anyone has an idea of how to check please let me know. I tried downloading the orders but that does not show gift cards.

[elightbox]

Update.
This is a real issue. Some gift cards are applied but are not deducted from the card balance. See image. This same card was applied to two order and still shows "amount spent=0" and the Balance as the original value. It is like the golden goose.

The order is finalized. It shows the Gift Cards as used, but with a balance due equal to the Gift Cards total , but with a status of "NEW"

[cbsteven]

Any common thread? Or a simple way for us to check to see if we have any that are the same way, other than clicking "edit" for each GC that has a balance? (which I just did btw, since I only had four GC's outstanding with a balance. none appear to have this issue)