This incident has been resolved, and only one Payment Order was affected.
At 9:35 AM PST, API requests to the Payment Order Create endpoint for wire transfers to one of our banking partners would return a 500. This was due to a bug in a recent change to our routing number lookup service. We noticed the elevated 500 rate due to the retrying Payment Order at 9:40 AM PST and began our investigation. By 10:35 AM PST we deployed a fix for this bug and confirmed that the affected Payment Order was successfully created.