Delayed processing of bulk message status updates

We have deployed a fix to permanently resolve issues with delayed bulk status update jobs.

We have finished clearing the queue of backlogged bulk status update jobs. We are still seeing intermittent delays processing bulk status update jobs of no more than 1 minute. We are working on shipping a permanent solution to resolve any residual queueing delays for bulk status updates.

We have implemented a fix causing bulk status update jobs to become stuck in a queued state. We are now processing thru the backlog of bulk status update jobs that have become stuck over the past few hours.

We have identified an issue causing deferred jobs used to executing bulk message status updates to get stuck in a queued state. We are first working to resolve the issue for newly issued bulk status updates. We will then focus on clearing out the jobs stuck in a queued state.

We are investigating reports of delayed processing of bulk message status updates from the V1 API.