The issue has been identified by our partner and a fix is being implemented. You may still experience delays for both Multi-Part MT Messages and delivery receipts while sending SMS messages over a subset of our US short code numbers.
MO Messages: No Impact
MT Messages: Multi-Part MT will experience delays but No impact to Single Part MT
MMS Messages: No Impact
Delivery receipts: Delayed
We will issue an update as soon as more information becomes available. Please contact email@example.com
if you have any questions.