What is the symptom?
Strategy customers will see Strategy Narrowcast Server dynamic subscriptions fail with a “Segmentation failed” error. For a more specific error message, see the following Knowledge Base article: https://community.strategy.com/article/KB439853-MicroStrategy-Narrowcast-services-fail-with-segmentation-errors-Unable-to-close-the-Subscription-Book-Segmentation-failed-Service?language=en_US
Who will be affected?
Any customer using Strategy Narrowcast Server dynamic subscriptions will encounter this issue on the following Strategy versions and Operating Systems:
What causes this issue?
A software update in the Operating System versions listed above, caused a Visual Basic defect on Windows. When executing dynamic subscriptions, this VB defect triggers a failure in Narrowcast SubscriptionBookModule executable. As a result, Delivery Engine fails to communicate with it.
Is there a fix available?
Yes. This issue has a confirmed fix in Strategy 2019 Update 1, which is Generally Avaiable as of March 22nd.
If upgrading is not an option, then how can you remedy this situation?
Follow KB439853, provided above. If this does not resolve the issue, then contact Strategy Technical Support for further assistance.
