If you installed Event Streams version 11.1.2 as part of IBM Cloud Pak for Integration, signing in to the UI as an IBM Cloud Pak foundational services Identity and Access Management (IAM) user fails with a
502 Bad Gateway error message.
The Event Streams operator has misconfigured the authorization permissions for the Identity and Access Management (IAM) user.
Resolving the problem
Upgrade your Event Streams instance to version 11.1.3 or later to resolve the issue.