Known issue - PubSub Subscriptions disappear from API response minutes after creation
You can create an alert and eventstream subscription from the Real-Time hub. Minutes after creation, you don't see the subscription from the level 2 view of the Real-Time hub.
Status: Open
Product Experience: Real-Time Intelligence
Symptoms
You don't see a recently created subscription in the level 2 view of the Real-Time hub.
Solutions and workarounds
You can access your alert by navigating to the specific item and viewing the Real-Time hub rules there.