If you're going to tell me that an order failed, or "may have" failed, and it does not show up on the pending orders page, then CANCEL THE
FUCKING order.
It could well be intentional. We never know. Kraken would like you to believe that it's a "bug". But I have reasons to believe it's not a bug but a well thought out trick to steal money from us and pretend it as a "bug."
It's a bit old-fashioned trick but it's working for them.