After the Mar 4 update of the service, we received quite a bit of feedback about a bug on the Kanban board. It turned out that the first column on the board was not ordered by stack rank anymore, but by closed date. Since the closed date is empty in the first column, the order of the items in the column was random.
Although our next deployment is not to far out, we updated the service to fix this bug, and you will be able to see your incoming column on the board in the correct order again, as you would expect.
Sorry for the disruption that we have caused, and so many thanks for the feedback that you gave to us via User Voice, the MSDN Forums, Twitter or Connect. Keep the feedback coming.
Ewald Hofman